Chapter Summaries

Lin Li searched Fort Rozz for Kara while the Kryptonians feared his ability to kill from within. He found Kara and refused to let her decide alone whether to risk herself saving Earth.

• Lin Li phased into Fort Rozz and searched through its dangerous corridors and abandoned cells.
• Non watched footage of Lin Li killing Kabeet and tracked him moving through the prison.
• Kara entered the control center with Astra and decided to confront Lin Li herself.
• Kara found Lin Li and insisted she could not leave because she needed to save Earth.
• Lin Li asked whether Kara's powers had returned, then told her that her opinion did not matter as a sonic boom erupted.

Lin Li rescued Kara from the laser-filled plaza and learned that Astra planned to save Earth by controlling humanity. As Lin Li and Kara headed toward Control Room 1, Astra went out alone to rescue her niece while her soldiers prepared for battle.

• Lin Li told Kara that Astra intended to control humanity and struck her when she questioned him.
• Ceiling-mounted lasers attacked Lin Li and Kara, but Lin Li carried her through the barrage and escaped the plaza.
• Lin Li asked Kara to lead him to Astra, and Kara angrily agreed so she could confront her aunt.
• Astra saw Lin Li carrying Kara on the control-room route map and left Control Room 1 to rescue her.
• Lieutenant Non ordered the Kryptonian soldiers to prepare for battle as they questioned whether Supergirl was truly their ally.

Lin Li attacked Non and the Kryptonians in Control Room No. 1 while Kara confronted Astra over her plan to save Earth. The fight left the control room dark, and Lin Li continued taking down the Kryptonians as they fired Heat Vision at him.

• Barry arrived at General Sam Lane’s command room and asked for protective gear so he could enter Fort Rozz and help Lin Li.
• Kara demanded that Astra explain how she planned to save Earth, while Lin Li left them to confront the remaining Kryptonians.
• Lin Li reached Control Room No. 1 and struck Non as the door opened, smashing him into the control console and plunging the room into darkness.
• The Kryptonians fired Heat Vision at Lin Li, but he moved through the beams and made them hit one of their own.
• A Kryptonian screamed as Lin Li continued his attack in the dark control room.

Lin Li slaughtered Kryptonian warriors in the control room before Non attacked him, while Astra defeated and froze Kara in the corridor. Kara broke free and fought Astra with Heat Vision, but Astra knocked her unconscious; the sound of fighting then made Astra turn toward the corridor.

• Lin Li killed three Kryptonian warriors, leaving one terrified survivor.
• Non recovered, attacked Lin Li, and lost his arm when their fists collided as Lin Li reached for his heart.
• Kara confronted Astra over her plan to save Earth, and the two began fighting in the corridor.
• Astra froze Kara with her freezing breath, but Kara broke out of the ice and resisted her with Heat Vision.
• Astra overpowered Kara with Heat Vision and knocked her unconscious, then turned toward a sudden clanging sound.

Lin Li defeated the Kryptonians in the control room and confronted Astra, who attacked him after learning that her husband Non and the others were dead. After Lin Li cut off Astra’s leg, he explained that he was killing them because she had attacked him, and a massive Demon Claw appeared before her.

• Lin Li emerged from the control room and told Astra that the five Kryptonians, including her husband Non, were dead.
• Astra attacked Lin Li with Heat Vision, but he dodged the beams at super speed.
• Astra charged Lin Li to fight him up close, and he cut off one of her legs.
• Astra asked why Lin Li was stopping her from saving Earth, and he said he wanted to kill them because she had attacked him.
• A massive Demon Claw appeared before Astra’s terrified eyes.

Lin Li and Barry returned to Earth-1 through the wormhole after Lin Li killed Astra and her Kryptonian legion, leaving Kara behind with unresolved feelings. At STAR Labs, Barry attacked Harrison Wells as soon as he arrived, while the team faced King Shark, Sand Demon, and ZOOM’s threat.

• Barry finished tuning the worlds’ frequencies, and Kara asked Lin Li if they would meet again as he entered the wormhole without hearing her.
• Lin Li and Barry emerged at Ferris Runway on Earth-1, then raced toward Central City.
• Cisco, Caitlin, Joe, Iris, and Harrison Wells discussed the danger from King Shark and Sand Demon while Firestorm stayed away to avoid military attention.
• Barry and Lin Li burst into STAR Labs, where Barry grabbed Harrison Wells by the throat and slammed him against the wall.

Barry returned and nearly strangled Harry, but Joe and the others stopped him and explained that Harry was from Earth-2, not the Reverse-Flash. As Team Flash tracked Sand Demon to an abandoned warehouse, they realized they needed a way to defeat his sand form.

• Barry attacked Harry, but Joe, Iris, and Caitlin stopped him and explained who Harry was.
• Harry was taken to the infirmary, and Lin Li learned that Cisco had vibed him on another Earth.
• Cisco described the search for Sand Demon and King Shark, while Joe received a call from Sand Demon, who had kidnapped an officer and demanded The Flash meet him at eight.
• Cisco tracked Sand Demon's call to an abandoned clover-growing warehouse, and Iris pointed out that physical attacks could not harm him.
• Lin Li suggested lightning as a way to fight Sand Demon.

Lin Li and Barry planned to rescue Patty and capture the Sand Demon, with Lin Li explaining that lightning could turn sand into glass. Barry reached the Sand Demon’s greenhouse first, appearing before him as the villain prepared a bomb.

• Lin Li explained that lightning could melt and vitrify the Sand Demon’s sand body, then assigned Barry to confront the Sand Demon while he waited in the shadows.
• Lin Li told Cisco to keep tracking King Shark and manifested his Transcendence Armor before leaving the control room.
• Barry and Lin Li raced across Central City toward the abandoned greenhouse where Eddie Slick had taken Patty.
• Eddie Slick assembled a concussion bomb beside the unconscious Patty, planning to use her as leverage against The Flash.
• Barry appeared in a flash of yellow lightning and challenged Eddie Slick.

Barry and Lin Li rescued Patty by tricking Sand Demon into abandoning his hostage, then destroyed him with a lightning attack. After they celebrated, a blue streak of lightning appeared, and they recognized Lightning Rider.

• Barry arrived at Sand Demon's greenhouse and tried to negotiate while Sand Demon held Patty hostage.
• Lin Li told Barry to take Sand Demon's punches and draw him away from Patty, but Sand Demon stayed beside her.
• Barry pretended to be incapacitated, prompting Sand Demon to leave Patty and approach him.
• Barry sprang up and attacked Sand Demon with rapid sonic punches, then Sand Demon ran toward Patty.
• Lin Li slashed Sand Demon with the lightning-charged Demon Claw, turning him into glass that shattered.
• Barry and Lin Li celebrated, then saw a blue streak of lightning and identified Lightning Rider.

Lin Li and Barry confronted ZOOM, who threatened Central City with bombs and challenged them to a deadly race. Cisco located five bombs across the city with only thirty seconds remaining, leaving the heroes racing to respond.

• Lin Li advanced on ZOOM, whose button triggered an explosion at an abandoned greenhouse about five hundred meters away.
• ZOOM revealed that five more bombs would explode in Central City's downtown district and challenged Lin Li and Barry to a race to the death.
• Barry stopped Lin Li from pursuing ZOOM, and the two stayed behind to deal with the bombs as ZOOM vanished.
• Lin Li ordered Cisco to locate the bombs and Joe to prepare police broadcasts for evacuations.
• Cisco identified bombs at Central City Hospital, Central Plaza, the Central City Police Department, Central City Cinema, and STAR Labs, with only thirty seconds left.

Lin Li and Barry raced to find and launch the five bombs ZOOM had planted around Central City, preventing any deaths. After the bombs exploded harmlessly in the sky, Lin Li promised to teach Barry how to fly once they dealt with King Shark and Barry got his father out.

• Caitlin identified the five bomb locations and gave Lin Li and Barry thirty seconds to find them.
• Joe told Lin Li that the police had already found the bomb at the police department and sent it into the sky.
• Lin Li found the cinema bomb, while Barry neutralized the hospital bomb and found the one at Central Plaza.
• Cisco located the STAR Labs bomb in the underground parking garage, and Lin Li found it before joining Barry at Central Plaza.
• Lin Li carried the STAR Labs and cinema bombs alongside the two bombs Barry had found, then launched them into the sky, where they exploded without killing anyone.
• Lin Li promised to teach Barry his flight technique after they dealt with King Shark and Barry got his father out, and the two sped away.

Barry returned to STAR Labs with Lin Li after resolving a crisis, and the team celebrated their reunion before Lin Li persuaded Barry to rest and focus on his father’s release from prison the next day. As Lin Li prepared to deal with King Shark, Caitlin volunteered to cook dinner, leaving Cisco worried about her Chinese food.

• Barry and Lin Li returned to STAR Labs, where Joe and Iris warmly welcomed Barry and praised him and Lin Li.
• Barry insisted on fighting King Shark, but Lin Li reminded him that his father would be released from prison the next day, so Barry agreed to rest and attend a celebration at Joe’s house.
• Barry thanked Lin Li for helping save his father and invited Lin Li, Cisco, and Caitlin to the party.
• Barry left with Joe and Iris, while Lin Li stayed behind with Cisco and Caitlin to handle King Shark.
• Caitlin volunteered to make dinner, and Cisco warned Lin Li that he would need to eat nearly all of her Chinese food.

Lin Li learned about King Shark’s abilities and went to the Marina District to stop him after the creature threatened The Eye’s agents. King Shark came ashore demanding Lightning Rider, just as Lin Li arrived.

• Cisco reviewed King Shark’s powers with Lin Li, who said electricity or Vibrational Phasing could defeat him.
• Cisco explained that Diggle and Lyla had requested support from The Eye and that King Shark had killed six agents.
• Lin Li left STAR Labs to confront King Shark, while Caitlin asked Cisco whether he wanted spicy beef stir-fried vermicelli.
• King Shark threatened Diggle and Lyla, and they discussed holding him off until energy weapons arrived.
• Diggle suggested telling King Shark that Lightning Rider was coming, but Lyla refused to risk it.
• King Shark came ashore roaring for Lightning Rider, and Lin Li arrived in a flash of light.

Lin Li arrived in the Marina District and confronted King Shark, whom ZOOM had sent to kill him. He crushed King Shark into the concrete and demanded to know what ZOOM wanted.

• Lin Li appeared beside Diggle and Lyla, identified himself, and told Lyla to evacuate the nearby personnel.
• Diggle and Lyla recognized Lin Li as he charged toward King Shark.
• King Shark identified Lin Li as the Lightning Rider and said Speed wanted him dead.
• King Shark leaped at Lin Li, who dodged and slammed down onto him with overwhelming force.
• Lin Li pinned King Shark in a crater and demanded to know what ZOOM wanted.

Lin Li subdued King Shark and realized ZOOM had been testing him and Barry, while suspecting ZOOM planned to steal Barry’s speed to heal his failing body. After Lin Li returned to STAR Labs, ZOOM emerged from a wormhole and gave Jay Velocity 9 as they prepared to add another speedster to their collection.

• Lin Li questioned King Shark about ZOOM’s plans while pinning him beneath his foot.
• Lin Li overwhelmed King Shark with the Speed Force lightning, knocking him unconscious.
• Lin Li reunited with Diggle and met Lyla before returning to STAR Labs.
• ZOOM emerged from a wormhole in a deserted junkyard and gave Jay two vials of Velocity 9.
• Jay said their collection would gain another speedster.

Lin Li practiced with the Speed Force and discussed his plans to confront ZOOM before investigating the vortex that had brought him to this world. He fled Caitlin's breakfast and met Cisco at Jitters Cafe, where Cisco pointed out Hawkgirl at the counter.

• Lin Li trained with the Speed Force, and Shanshan 2.0 said they had enough data to travel through time nodes.
• Lin Li said he would wait until ZOOM was dealt with before returning to the day he arrived, fearing the Speed Force might trap him during time travel.
• Caitlin called Lin Li to find Cisco and come to breakfast, so Lin Li hurried out of STAR Labs without greeting Harry.
• Harry tried to get Lin Li's help rescuing his daughter from ZOOM, but Lin Li ran past before Harry could speak to him.
• Lin Li found Cisco in line at Jitters Cafe and teased him about avoiding Caitlin's breakfast.
• Cisco claimed he had an important reason to be there and gestured toward the cashier, whom Lin Li recognized as Hawkgirl.

Cisco fell for Kendra Saunders and tried to ask her on a date at Jitters, but she rejected him. Lin Li teased Cisco afterward and claimed Kendra had seemed regretful, leaving Cisco hopeful and convinced Lin Li was a dating expert.

• Lin Li realized Cisco had genuinely become attracted to Kendra Saunders and worried about the complications her past relationships would bring.
• Cisco challenged Lin Li to watch him flirt with Kendra, but he froze at the counter before blurting out an invitation to a date.
• Kendra rejected Cisco's invitation, then regretted it slightly but lacked the courage to call him back.
• Lin Li ordered coffee and met Cisco outside Jitters, where he laughed at Cisco's failed attempt.
• Lin Li told Cisco that Kendra had looked regretful, and Cisco concluded Lin Li was a romance expert after hearing about his past date with a woman wearing an S on her chest.

Lin Li and Cisco spent the day shopping and wandering around Central City before joining Barry’s party for Henry Allen at Joe’s house. Lin Li’s blunt criticism ended Caitlin’s Chinese cooking experiment, and the gathering continued when Wally West arrived.

• Lin Li and Cisco bought gifts, spent the day exploring Central City, and saw Lightning Female Knight break a robber’s leg.
• Lin Li brought Henry Allen Keemun black tea and chatted with him at Joe’s house.
• After Henry Allen left the room, Caitlin confronted Lin Li and Cisco for missing her lunch.
• Lin Li told Caitlin her Chinese cooking was like poisoning, then praised her steak; Caitlin agreed to stop making Chinese food.
• Joe welcomed Wally West and introduced him to everyone.

Wally mocked Lin Li during Joe's attempt to introduce them, but Lin Li brushed off his insults, and the banquet ended without a fight. Later, Harry pleaded with Lin Li to help rescue his daughter from ZOOM, and Lin Li agreed to begin by closing Central City's breaches except for the one at STAR Labs.

• Joe introduced Wally to Lin Li, Cisco, and Caitlin, but Wally belittled Lin Li and mocked his country.
• Lin Li replied that America would be surpassed if it had more people like Wally, and Joe interrupted their exchange when dinner began.
• After the banquet, Joe apologized for Wally's behavior, and Lin Li encouraged him to give their father-son relationship time.
• Barry worried about Henry choosing to live alone, then talked with Lin Li on the roof until three in the morning.
• Harry asked Lin Li to help defeat ZOOM and save his daughter, and Lin Li agreed to close every breach in Central City except the one at STAR Labs.

Lin Li agreed to help Harry rescue his daughter from ZOOM in exchange for Harry’s future research assistance, and they began planning to close the breaches between Central City and Earth-2. Lin Li prepared technology to use as leverage at Mercury Labs, then asked Cisco to help Harry locate the breaches.

• Lin Li and Harry shook hands on a preliminary agreement, and Harry hurried off to begin closing the breaches while leaving the one at STAR Labs open.
• Lin Li researched Mercury Labs and planned to defeat ZOOM, investigate the vortex from his arrival, and use advanced technology to gain access to Mercury Labs’s researchers.
• Lin Li copied future scientific technologies onto a flash drive as a bargaining chip, then went to sleep after reviewing his plans.
• Lin Li trained the next morning and joined Caitlin and Cisco for breakfast, where they discussed the coming battle.
• Lin Li told Cisco to work with Harry to locate every breach connected to Earth-2, and Cisco asked why they needed to help him.