Recaps

Lu Zhe spent his remaining Potential Points on constitution and planned the group’s next survival tasks, but discovered that Tang Xiaoguo was dangerously cold and sick after snake venom weakened her immunity. As the girls’ attempts to warm her failed, he realized their bodies had been keeping the sand pit warm and considered using close body contact to protect her from the cold.

• Lu Zhe put all four of his remaining Potential Points into constitution and considered the group’s priorities for the next day.
• While changing the hot sand bottles, Lu Zhe touched Jiang Yao’s foot and then discovered that Tang Xiaoguo’s feet were ice-cold and trembling.
• Lu Zhe identified Tang Xiaoguo’s condition as a wind-cold cold caused by snake venom weakening her immune system, and the girls surrounded her with warm sand bottles.
• The girls warmed their hands and pressed them against Tang Xiaoguo, but she seemed to worsen as the sea breeze chilled them.
• Lu Zhe realized the sand pit had lost warmth when the girls sat up, checked the Survival Manual, and considered having companions press close together to preserve body heat.

Ning Shu and Lin Qianqian warmed Tang Xiaoguo with their body heat while Lu Zhe and Jiang Yao prepared more hot sand bottles. As Jiang Yao fell asleep beside Lu Zhe, they considered whether the first-class upgrade had left the other passengers on the plane, though they could not know if anyone had survived.

• Ning Shu and Lin Qianqian held Tang Xiaoguo between them to warm her, and her condition seemed to improve.
• Jiang Yao helped Lu Zhe heat stones and replace Tang Xiaoguo's hot-water bottles, then leaned against him for warmth.
• Jiang Yao became tearful as she praised Tang Xiaoguo for protecting her from the snake and wondered whether the other passengers had died.
• Lu Zhe realized that the five finance-class students had been the only ones upgraded to first class and considered whether the rest of the passengers had remained aboard the plane.
• Lu Zhe suggested the plane might have made an emergency landing at sea and been rescued, and Jiang Yao gradually fell asleep beside him.

Lu Zhe and the others huddled together to keep Tang Xiaoguo warm through the freezing night, while he tried to avoid choosing between the girls he liked. By morning, Tang Xiaoguo had recovered, but she and Lu Zhe accidentally shared a kiss, leaving her demanding to know what he would do about it.

• Lu Zhe considered his feelings for Tang Xiaoguo, Jiang Yao, Lin Qianqian, and Ning Shu, then decided not to confess to anyone because dating one would complicate their friendships and survival.
• When Ning Shu and Lin Qianqian began shivering from the cold while tending to Tang Xiaoguo, Jiang Yao asked Lu Zhe to help warm Guo'er by holding her.
• Lu Zhe and Jiang Yao held Tang Xiaoguo between them while Ning Shu and Lin Qianqian huddled together, and Tang Xiaoguo's condition stabilized as they slept through the night.
• Lu Zhe woke at dawn and found that Tang Xiaoguo's fever had passed, but as she stirred, she bumped into him and their lips met.
• Tang Xiaoguo blamed Jiang Yao for causing her to lose her first kiss and demanded to know what Lu Zhe would do about it.

On their second morning stranded on the deserted island, Lu Zhe and the others made a survival plan focused on finding fresh water and food, gathering firewood, and setting up distress signals. Lu Zhe, Ning Shu, and Jiang Yao left to search the western shore while Lin Qianqian stayed at camp with Tang Xiaoguo.

• Lu Zhe revived the nearly extinguished campfire and confirmed that it was six o'clock on June 11, their second day on the island.
• Ning Shu, Lin Qianqian, and Tang Xiaoguo woke, and the group discussed urgent survival tasks.
• Lu Zhe chose fresh water and food, firewood, and distress signals as the morning's priorities.
• Lu Zhe assigned Lin Qianqian to stay with Tang Xiaoguo while he, Ning Shu, and Jiang Yao searched for supplies.
• Lu Zhe led Ning Shu and Jiang Yao west along the shore to collect useful debris and edible seafood.
• Jiang Yao washed the sand and mud from herself by swimming in the sea.

Lu Zhe, Ning Shu, and Jiang Yao found coconuts while searching the beach for fresh water and supplies. As they tried to knock more down, Ning Shu lost her balance and fell after catching Lu Zhe looking up her skirt.

• Lu Zhe led Ning Shu and Jiang Yao onward, and they collected beach debris, shellfish, and mismatched flip-flops for Guo'er.
• The group found two coconut trees bearing ripe fruit, and Lu Zhe climbed the tall tree to gather fifteen coconuts.
• Lu Zhe proposed stacking the three of them so Jiang Yao could use a long branch to knock coconuts from the shorter, thicker tree.
• Jiang Yao knocked several coconuts down while standing on Ning Shu's shoulders, but she nearly fell when Lu Zhe shifted position.
• Ning Shu noticed Lu Zhe looking up her skirt, called him a pervert, and fell backward as she reached to cover herself.

After Jiang Yao badly sprained her ankle, Lu Zhe decided to move camp to the area with more plants, rocks, and coconuts. He returned to fetch Lin Qianqian and Tang Xiaoguo, but their slow pace left him wondering how to carry Tang Xiaoguo while keeping the ember alive.

• Ning Shu and Lu Zhe fell, and Jiang Yao injured her ankle on a rock.
• Lu Zhe determined that Jiang Yao had a severe sprain and needed to rest, so the group chose to move camp to her location instead of carrying her back.
• Lu Zhe noticed that the area had more plants and rocks, and told Ning Shu to stay with Jiang Yao while he fetched Lin Qianqian and Tang Xiaoguo.
• Lu Zhe returned to camp and told Lin Qianqian and Tang Xiaoguo about the move and the coconuts they had found.
• Lu Zhe preserved an ember in rolled bark and set off with Lin Qianqian supporting Tang Xiaoguo, then considered carrying Tang Xiaoguo to speed them up.

Lu Zhe carried Tang Xiaoguo to the coconut trees so the group could reach them before their flame went out. After Ning Shu failed to crack open the coconuts with a rock, Lu Zhe proposed using chewed gum, and he took Jiang Yao’s gum to try the method.

• Lu Zhe carried Tang Xiaoguo on his shoulders while Lin Qianqian guarded the flame, and the three reached the coconut trees about half an hour later.
• Lu Zhe relit the fire while Lin Qianqian checked Jiang Yao’s swollen ankle, and Tang Xiaoguo and Jiang Yao teased each other about Lu Zhe carrying Tang Xiaoguo.
• Ning Shu said she had been unable to open a coconut by smashing it against a rock, and Lu Zhe explained that the rock and her strength were inadequate.
• Lu Zhe remembered a method for opening coconuts with chewed gum and asked everyone to give him theirs.
• Jiang Yao handed Lu Zhe her gum, and he tossed it into his mouth.

Lu Zhe used the girls’ chewed gum to make holes in coconuts, giving the group fresh water while he planned how to make tools and signal for rescue. The group laid out a large SOS on the beach, and Lu Zhe found a tin can that could serve as a soup pot.

• Lu Zhe chewed gum from Ning Shu, Tang Xiaoguo, Lin Qianqian, and Jiang Yao, then used it to punch holes in coconuts and give everyone coconut water.
• Lu Zhe said the group needed reliable tools, and Ning Shu, Lin Qianqian, Tang Xiaoguo, and Jiang Yao divided up tasks.
• Lu Zhe and the others gathered rocks, and Lu Zhe arranged them into a large SOS on the beach.
• Lin Qianqian tossed aside a filthy tin can, but Lu Zhe picked it up and discovered it could be used as a soup pot.

Lu Zhe cleaned a discarded tin can and devised a way to collect fresh water by condensing steam from boiling seawater into cloth. He showed Lin Qianqian how to use the method and left her to distill the water.

• Lu Zhe tested the tin can for leaks and decided it could serve as a cooking pot.
• Lu Zhe scrubbed the can clean with wet sand, bark, and a twig while Lin Qianqian and Ning Shu watched.
• Lu Zhe recalled a distillation method that used cloth to absorb steam from boiling seawater.
• Lu Zhe heated seawater in the can and tied a scrap of cloth into a bundle above it.
• Lu Zhe taught Lin Qianqian to hang the cloth over the pot and wring out the collected fresh water.

Lu Zhe and the girls made their first tools from a tin lid and stones, with Lu Zhe using Potential Points to increase his strength. After completing a small knife and felling a tree for an axe handle, they continued preparing to build a stone axe.

• Lu Zhe gave Ning Shu the tin lid to sharpen into a knife, then discovered that a rock he picked up was suitable for a stone axe.
• After breakfast, Lu Zhe spent 5 Potential Points on strength so he could carry a heavy rock into the shade for grinding.
• Ning Shu, Jiang Yao, and Tang Xiaoguo worked together for over two hours to sharpen the tin lid into a blade, which cut through an old bottle.
• Lu Zhe ground a stone axe head and chisel, then made a handle for the tin knife and bound the blade in place with bark cord.
• Lu Zhe spent his remaining 8 Potential Points on strength, felled a small tree, and cut off a section of wood for the stone axe handle.

Lu Zhe made a sturdy stone axe, built a powerful slingshot, and fashioned a basic compass from a bank card’s magnetic strip. He used the difference between day and night to estimate that they were at a low latitude, somewhere between the equator and the Tropic of Cancer.

• Lu Zhe finished a stone axe and used it to chop a tree into firewood.
• Lu Zhe made a slingshot from a forked branch, hair ties, and a flip-flop sole, then tested it on a tree and earned a Potential Point.
• The girls washed and dried their clothes while they waited for rescue, and Tang Xiaoguo joked about Ning Shu’s stomach growling like a helicopter.
• Lu Zhe cut a magnetic strip from Lin Qianqian’s bank card and floated it on water to make a compass, earning a Potential Point.
• Lu Zhe told the girls he was calculating their location and estimated from the short difference between day and night that they were between the equator and the Tropic of Cancer.

Lu Zhe used a map and the flight route to estimate that the group was stranded far from their homeland, likely on an island in international waters. He proposed sending messages in bottles to alert rescuers, and the group prepared three notes before deciding to release them when the tide went out.

• Lu Zhe drew a map from memory and used the flight route to estimate the group's location near the Philippines, far outside their country's jurisdiction.
• Lu Zhe explained that cold and warm currents could account for the island's unusually large temperature swings, while the girls worried that rescuers might never find them.
• Lu Zhe suggested sending messages in bottles, and the girls gathered three sturdy bottles and praised his idea.
• Lin Qianqian copied Lu Zhe's map, marked the accident site, and wrote the group's details in Chinese and English.
• Lu Zhe asked Lin Qianqian to add the date and sunrise and sunset times, then explained that they should release the bottles when the tide went out.

Lu Zhe used the group’s supplies to make food and set rat traps, then cut wood to begin building a shelter. When Ning Shu and Lin Qianqian found a bunch of green bananas near the woods, they brought them back to camp for Lu Zhe to identify.

• Lu Zhe opened coconuts with the stone axe and roasted coconut strips for the group to eat.
• He found rat droppings, used snake entrails as bait, and made three spring-sapling traps.
• Lu Zhe gained a Potential Point and spent two hours cutting seven lengths of wood for a shelter.
• Ning Shu and Lin Qianqian returned from the woods with green bananas, which Ning Shu identified as ma bananas and offered to Lu Zhe.

Lu Zhe and the girls found abaca, learned that its fruit was poisonous but its fibers could be made into useful rope, and gathered enough cord to begin building a shelter. They chose a sheltered spot and prepared to start construction.

• Lu Zhe told Tang Xiaoguo, Ning Shu, Lin Qianqian, and Jiang Yao that abaca fruit was poisonous, then explained that its fibers could be used to make rope and fishing nets.
• Lu Zhe and Ning Shu found an abaca plant, but a rat fled after smelling puddles of urine left by Ning Shu and Lin Qianqian.
• Lu Zhe showed Ning Shu how to strip fibers from abaca leaves, and they twisted more than sixty cords into thicker ropes.
• Lu Zhe returned with seven small tree trunks while Ning Shu chose a sheltered spot for the group to build their shelter.

Lu Zhe and the girls built a shelter, then prepared to forage and fish as the tide receded. After Jiang Yao fell and got dirty, Lu Zhe used her feces in a stocking as bait and began wondering how to manage the injured girls during the next trip.

• Lu Zhe organized the group to build a leaf-covered shelter where all five could rest.
• Jiang Yao fell while squatting because of her injured ankle, and Lin Qianqian helped her wash at the shore.
• Lu Zhe collected the dragon fruit seeds from Jiang Yao’s feces using his sock and decided to use it as fish bait.
• Lu Zhe made a fishing net from Tang Xiaoguo’s stocking and set it among rocks to catch fish as the tide went out.
• Lu Zhe considered how to forage when two girls had injured feet and the group could not easily look after everyone.

Lu Zhe and Ning Shu gathered seafood along the beach, then spotted a distant object that might have been a boat and made an SOS marker before heading back to camp. As they left, Lu Zhe saw the object flash once.

• Jiang Yao and Tang Xiaoguo stayed at camp while Lu Zhe and Ning Shu went to gather seafood at low tide.
• Lu Zhe used powdered salt to catch a razor clam, and he and Ning Shu collected shellfish, seaweed, and edible starfish.
• Ning Shu spotted a distant object on the horizon, but she and Lu Zhe could not tell whether it was a boat.
• Lu Zhe and Ning Shu made an SOS marker and spelled out that five people were stranded on the island.
• As they started back to camp, Lu Zhe noticed the distant object flash once.

Lu Zhe caught a rat whose cries had frightened the girls, then roasted it with starfish roe and chili oil for their dinner. As the group shared rat meat and seafood soup, they felt closer as a family, while Jiang Yao and Tang Xiaoguo teased Lin Qianqian about liking Lu Zhe.

• Lu Zhe and Ning Shu returned to camp and found Tang Xiaoguo, Jiang Yao, and Lin Qianqian hiding in the shelter because they heard a ghostly wail.
• Lu Zhe caught a rat in one of his traps and explained that its cries warned other rodents of danger.
• Lu Zhe cleaned the rat, coated it with spicy starfish roe, and roasted it over the fire while Ning Shu and the others prepared seafood and coconut.
• Lin Qianqian tried the rat first, then Tang Xiaoguo, Ning Shu, and Jiang Yao also asked for a taste.
• The group shared dinner and said their life on the island had improved, while Jiang Yao and Tang Xiaoguo teased Lin Qianqian about liking Lu Zhe.

Lu Zhe caught a haul of tiny fish using a stocking baited with his sock and Yaoyao’s feces, then prepared them for breakfast with Ning Shu. After eating with the girls, he planned to check the other side of the island for the distant ship-like object.

• Lu Zhe and Ning Shu told the others about the ship-like object they had seen offshore, and Lu Zhe set an alarm to investigate it in the morning.
• The girls invited Lu Zhe to sleep in their shelter, where Tang Xiaoguo tried to warm her feet against him before everyone fell asleep.
• After waking, Lu Zhe found twenty or thirty small fish in the stocking trap he had set with Yaoyao’s feces as bait.
• Lu Zhe gutted the fish, skewered them, and grilled them with chili oil while Ning Shu kept their unusual bait a secret from the other girls.
• The group ate grilled fish, roasted coconut flesh, and crab and kelp soup for breakfast, and Lu Zhe prepared to check the island’s far side for the ship-like object.

Lu Zhe and Ning Shu explored the island and spotted what appeared to be another small island, not a rescue ship. Lu Zhe decided to enter the jungle with Ning Shu and climb to their island’s highest point for a better view and to learn more about the island.

• Ning Shu stayed with Lu Zhe while Lin Qianqian, Tang Xiaoguo, and Jiang Yao divided camp chores among themselves.
• Lu Zhe and Ning Shu gathered useful supplies as they searched the island, and Ning Shu asked Lu Zhe whether he liked Jiang Yao and Tang Xiaoguo.
• Lu Zhe told Ning Shu that he liked all four girls, including her, and said choosing only one would be impossible.
• Lu Zhe used Potential Points to sharpen his perception and identified the distant object as a small island.
• Lu Zhe decided to enter the jungle with Ning Shu and climb to the island’s highest point, and she took his hand as they prepared to go.

Lu Zhe and Ning Shu found wild raspberries while making their way through the jungle, but Ning Shu accidentally wiped herself with stinging grass after using the toilet. Lu Zhe identified the plant and began looking for a way to relieve her severe itching.

• Lu Zhe carefully led Ning Shu through the jungle and found wild raspberries, which they picked and ate.
• Ning Shu needed to use the toilet, and Lu Zhe pointed out a sheltered spot while she went alone.
• Ning Shu realized she had no tissues, and Lu Zhe refused to let her use pages from her notebook.
• Ning Shu wiped herself with a leaf and soon felt intense itching; Lu Zhe recognized it as stinging grass.
• Lu Zhe checked the plant's information and considered possible treatments, then thought of a way to find sterile water.

Ning Shu asked Lu Zhe to date her for one day, and the pair explored their island before sharing a first kiss. They named their island Egg Yolk Island and the larger volcanic island Volcano Island, then Ning Shu said she had finally fulfilled her wish to fall in love in college.

• Ning Shu asked Lu Zhe to date her for one day, and he agreed so she could feel comfortable dealing with her discomfort.
• Lu Zhe and Ning Shu climbed to the island's high ground, where he mapped the island and they spotted coconut trees and a larger island with a dormant volcano.
• Ning Shu proposed naming their island Egg Yolk Island and the island across the water Volcano Island, and they toasted their hopes of returning home and school.
• Ning Shu suggested that she and Lu Zhe kiss because they were dating for a day, and they shared a gentle kiss.
• Ning Shu told Lu Zhe that she had finally fulfilled her wish to fall in love in college.

Ning Shu and Lu Zhe returned to camp with coconuts and found a message bottle from another survivor. Its letter said that flight attendant Ruan Bing had survived the crash alone on a large Pacific island, and the group realized she had been aboard their flight.

• Ning Shu and Lu Zhe woke from a nap, discussed the long wait for fruit crops, and set off back to camp while surveying the island.
• They collected coconuts and bottles in a small grove, where they found a bottle resembling one of their own message bottles.
• Ning Shu and Lu Zhe returned before dark and told Lin Qianqian, Tang Xiaoguo, and Jiang Yao about their trip.
• The group discovered that the bottle contained a letter from Ruan Bing, a lone survivor of flight CZ125 stranded on another island.
• Lu Zhe and the girls realized that Ruan Bing was the flight attendant who had been in first class.

Lu Zhe persuaded Ning Shu, Tang Xiaoguo, Jiang Yao, and Lin Qianqian to relocate to Volcano Island because their current island lacked enough fresh water. The group began preparing to build a raft, and Lu Zhe headed into the woods while the others gathered supplies and worked at camp.

• Lu Zhe explained that the group could not survive long-term without a reliable freshwater source, and Ning Shu and the others agreed to move to Volcano Island within seven days.
• The group ate a small meal, discussed their supplies and seeds, and grew concerned that Lin Qianqian had not had a bowel movement since they were stranded.
• Lu Zhe set his alarm for five, checked the traps, and shared the small fish caught in Guo'er's stockings for breakfast.
• Lu Zhe assigned Tang Xiaoguo to distill water, Jiang Yao to strip abaca bark and help cook, and Ning Shu and Lin Qianqian to gather supplies along the west coast.
• Lu Zhe stayed behind to cut abaca and trees for the raft, planning to search the woods for medicinal herbs as well.

Lu Zhe and the others gathered supplies and prepared materials for a raft while sheltering from the midday heat. When Lu Zhe planned to search deeper in the jungle for more wood, Lin Qianqian insisted on going with him, and Ning Shu objected despite her ongoing irritation.

• Lu Zhe cut down abaca and thirteen logs, while Jiang Yao and Tang Xiaoguo processed fibers into rope and prepared food.
• Ning Shu and Lin Qianqian returned with coconuts, bottles, seafood, and other items they had collected using a tarp as a stretcher.
• The group reported their supplies, shared coconuts, ate lunch, and rested from the heat.
• Lu Zhe decided to search deeper in the jungle for more raft materials because the camp did not have enough suitable wood.
• Ning Shu tried to join Lu Zhe but had to retreat to the grove, so Lin Qianqian offered to accompany him and learn survival skills.

Lu Zhe and Lin Qianqian searched the jungle for food and medicinal plants, and Lin Qianqian admitted she liked both boys and girls. They found useful aster flowers, wild mint, and a sweet potato plant, which Lu Zhe carefully dug up to transplant near camp.

• Lu Zhe taught Lin Qianqian how to identify edible leaves, wild vegetables, and berries while they searched the jungle.
• Lu Zhe asked whether Lin Qianqian liked a boy, and she said she liked girls too.
• Lu Zhe identified fragrant aster flowers as non-toxic and medicinal, then gathered them with Lin Qianqian along with wild mint.
• Lin Qianqian spotted a sweet potato plant, and Lu Zhe carefully dug it up intact so they could transplant it near camp.
• Lin Qianqian worried when sweet potato leaves leaked white sap, and Lu Zhe told her the leaves were edible.