Chapter Summaries

Lin Li and Astra traded devastating blows, but he used her brief distraction to seize her and pin her to the ground. He brought an ultra-high-frequency Demon Claw toward her face, leaving Astra terrified as the chapter ended.

• Astra charged Lin Li, and they exchanged a punch that sent them both flying backward.
• Lin Li crashed into the RV, which overturned and exploded, but he emerged from the flames unharmed.
• Astra paused at Lin Li’s resolute gaze, and he used the opening to cross the distance between them at supersonic speed.
• Lin Li grabbed Astra by the throat, slammed her to the ground, and dragged her along the dirt.
• Lin Li raised his vibrating Demon Claw toward Astra’s face, and she feared it would tear through her steel body.

Lin Li nearly killed Astra with a high-speed Demon Claw attack, but her Heat Vision stopped the strike and burned his hand. Lin Li retreated into a sandstorm and healed his injured hand while Astra watched for his next attack.

• Lin Li pinned Astra down and tried to stab her face with his high-frequency Demon Claw.
• Astra fired Heat Vision into the claw, stopping it and heating it red before Lin Li could strike.
• Lin Li abandoned his attack and retreated into the sandstorm as Astra’s counterattack missed.
• Lin Li used his Speed Cells to disperse the heat and regenerate his hand.
• Astra fired another pair of Heat Vision beams toward Lin Li’s shadow in the sandstorm.

Astra pursued Lin Li with Heat Vision, but he used the Speed Force to dodge every beam with extreme agility. As she continued the chase, lightning gathered in Lin Li’s right hand.

• Astra fired Heat Vision through the dust, but Lin Li dodged and sprinted away at supersonic speed.
• Astra tracked Lin Li with her gaze and swept the beams after him as he ran.
• Lin Li stopped abruptly to let the Heat Vision pass over his back, then dodged further attacks with jumps and midair rolls.
• Astra continued pursuing Lin Li with Heat Vision as he performed acrobatic parkour to evade each beam.
• Lin Li ran beneath the pursuing beams, and electromagnetic lightning gathered in his right hand.

Lin Li fought Astra in the air above Star City, using a pair of lightning attacks to force her into a desperate dodge. As Astra tried to recover, Lin Li launched himself toward her with his high-frequency Demon Claws, closing in for another strike.

• Astra pursued Lin Li through a sandstorm with Heat Vision as he raced away in his lightning-charged armor.
• Lin Li hurled a dazzling lightning sphere at Astra, then concealed a smaller sphere behind it as the real attack.
• Astra dodged the large sphere and bent backward to narrowly avoid the hidden lightning attack.
• Lin Li activated his high-frequency Vibrational Hand Blade and sped toward the bent Astra.
• Lin Li used bursts of Speed Force beneath his feet to ascend toward Astra, his Demon Claws poised to tear into her.

Astra failed to defeat Lin Li, who escaped her attacks by phasing through the ground and left to build a faster machine. Kara and Barry arrived at the battlefield, and Kara attacked Astra, demanding to know what she had done to Lin Li.

• Astra escaped Lin Li’s attack at nearly Mach 6, then returned and struck him with freezing breath.
• Lin Li phased underground, avoiding Astra’s freezing wind and evading her X-ray vision.
• Lin Li emerged on a distant hill, decided to build a prototype faster-than-light particle transfer device, and left the fight.
• Barry and Kara arrived to find the RV wreckage and could not see Lin Li.
• Kara punched Astra into a crater and demanded to know what she had done to Lin Li.

Kara confronted Astra over her crimes and her apparent attack on Lin Li, but their dispute turned into a fierce argument about Kara’s mother, Aluna. Lin Li returned to Barry as Kara and Astra continued fighting.

• Kara demanded to know what Astra had done to Lin Li, while Lin Li ran back toward the battlefield and Barry anxiously searched for him.
• Astra told Kara that she had come to invite Lin Li to join her and reunite their family.
• Kara rejected Astra and blamed her for ruining lives, while Astra insisted that Aluna had caused Krypton’s destruction.
• Kara punched Astra for insulting her mother, and Astra retaliated by sending Kara flying.
• Lin Li reached Barry and watched as Kara and Astra argued and fought.

Lin Li returned to Barry with a kryptonite sword while Kara and Astra fought in the sky. Astra revealed that Kara’s mother had used Kara’s surveillance signal to help capture her, and Kara fainted from the shock as silver light flashed nearby.

• Barry worried that Lin Li had been hurt, but Lin Li said he had only suffered a minor fracture that had already healed.
• Barry gave Lin Li a sword forged from green kryptonite, and Lin Li explained that it could weaken Kryptonians.
• Lin Li and Barry watched Kara and Astra continue their battle high above them.
• Astra asked Kara whether her mother had used Kara’s surveillance signal to help capture her.
• Kara realized Astra meant her mother and cried out before falling unconscious from the sky.
• A flash of silver light appeared as Kara fell.

After Kara lost her powers and fell from the sky, Lin Li caught her and faced Astra with a Kryptonite Knife. Astra decided she could not win and fled, leaving Kara with Lin Li and Barry.

• Kara lost consciousness and plunged toward the ground after overusing her Heat Vision.
• Lin Li and Astra both rushed to catch Kara, but Lin Li reached her first and landed safely with her in his arms.
• Lin Li shifted Kara over his shoulder, drew his Kryptonite Knife, and ordered Astra to get out.
• Barry arrived, and Astra judged that she could not defeat Lin Li and the two speedsters together.
• Astra flew away, furious at how Lin Li had carried Kara.

After Kara collapsed from overexertion, she woke troubled by Astra’s claims about her mother and hurried to return to DEO headquarters to seek answers. Lin Li and Barry planned to go there too, but Kara discovered her powers were gone when she tried to fly, and Lin Li concealed the truth by blaming exhausted Kryptonian cells.

• Barry arrived and asked about Kara, while Lin Li said she would recover after resting in the sun.
• Kara woke and told Lin Li and Barry she needed to return to DEO headquarters to investigate Astra’s claims about her mother.
• Lin Li agreed to go to DEO with Barry, but Kara tried to fly and fell face-first because her powers were gone.
• Kara panicked over losing her powers and hurting her nose, so Lin Li claimed Heat Vision had temporarily depleted her energy and massaged her nose.
• Kara’s nose began bleeding, and she panicked again.

Lin Li and Barry explained their arrival from a parallel universe to Hank Henshaw and Alex Danvers, then offered to cooperate with the DEO and help capture the Kryptonians. After they agreed on initial terms, they went to the medical area, where Shanshan 2.0 reported that she had downloaded Kryptonian data.

• Hank Henshaw and Alex Danvers questioned Lin Li and Barry about their origins and purpose, and Barry explained that his uncontrolled speed had accidentally brought them to this world.
• Lin Li returned the Kryptonite Knife and told Hank and Alex that they wanted to go home and would cooperate with the DEO to capture the Kryptonians.
• Lin Li explained that Astra had attacked him and that he wanted to repay Kara and the DEO for their help, while Barry supported his offer.
• Hank proposed installing trackers on Lin Li and Barry to build trust, and Lin Li agreed to cooperate with the DEO's rules and questions.
• After an agent reported that Supergirl's body scan was complete, the group left for the medical area, where Shanshan 2.0 entered Lin Li and told him she had downloaded Kryptonian data.

Kara returned to the DEO shaken by Astra’s revelation about her mother and afraid to question the AI modeled after her. When a fire trapped nearly fifty people in a skyscraper and Kara could not help, Barry stepped forward as the Flash.

• Alex comforted Kara and explained that she had only depleted the solar energy in her Kryptonian cells, but Kara remained distressed about her mother.
• Kara left the medical room to ask her mother questions, and Lin Li followed her while Alex, Hank Henshaw, and Barry tried to understand what was wrong.
• A female agent reported that nearly fifty people were trapped in a fire on Siegel Street, and Alex insisted that the DEO had to help despite Kara’s lost powers.
• Barry put on his mask and announced that he was a superhero on his Earth too: the Flash.

Kara struggled to face the revelation that her mother had used her to capture Astra, while Lin Li stayed by her side. After Aluna confirmed it and refused to explain Astra’s plan to save Krypton, Kara broke down in Lin Li’s arms.

• Barry revealed to Hank Henshaw and Alex Danvers that he was the Flash, then raced away to help people.
• Hank Henshaw called for weapons that could limit Barry’s speed, and Alex accepted the precaution.
• Kara confessed to Lin Li that she feared her mother had used her to capture Astra, and Lin Li encouraged her to face the truth.
• Lin Li accompanied Kara to question Aluna, who confirmed that she had used Kara to capture Astra.
• Kara asked whether Astra had been trying to save Krypton, but Aluna said her programming could not provide that information.
• Kara accused her mother of leaving her alone and letting everyone she loved die, then collapsed sobbing against Lin Li.

After Kara broke down over her mother and fell asleep, Lin Li urged Barry to focus on returning to Earth-1 before ZOOM could harm Cisco or Caitlin. Barry said he could adjust his frequency and return within five days, leaving Lin Li to prepare a Speed Force prototype and deal with the alien Kara.

• Kara cried for nearly half an hour, then fell asleep holding Lin Li's arm, and Lin Li tucked her in before leaving.
• Lin Li found Barry being praised by Hank Henshaw and the DEO staff for saving fifty people.
• Lin Li rebuked Barry for celebrating instead of focusing on returning to STAR Labs, where ZOOM threatened Cisco and Caitlin.
• Barry told Lin Li he had begun adjusting his frequency and expected to return to STAR Labs within five days.
• Lin Li said he would build a faster-than-light particle transfer Speed Force prototype machine and teach an alien how to be an Earthling.

Lin Li tested the new Speed Force prototype while Barry continued adjusting to Earth-1’s frequency, and Kara regained her resolve after seeing the news about the earthquake. The chapter ended with Astra flying into Kara’s home.

• Barry told Lin Li that justice, hope, and love had helped him synchronize faster, while Lin Li insisted there was a scientific explanation.
• Shanshan 2.0 reported Lin Li’s five prototype test results, including improved running speed and lightning, a successful energy beam, and failed phasing and flight tests.
• Kara watched news reports about Barry saving more than two hundred people during her absence and felt guilty for neglecting Nashino City’s residents.
• Kara decided to overcome her grief and return to being Supergirl.
• Astra flew through Kara’s window and called her name.

Kara confronted Astra about her criminal past and learned that Earth was nearing ecological collapse. After hearing that Astra and Kara's mother had both tried to save Krypton, Kara agreed to help Astra save Earth.

• Astra reunited with Kara and promised to explain what had happened on Krypton.
• Astra told Kara that Earth was on the verge of ecological collapse and asked her to help prevent its destruction.
• Kara questioned whether her mother had also tried to save Krypton, and Astra explained that Aluna had failed while trying to unite the Kryptonians.
• After hearing news that the Flash had saved a city, Kara accepted Astra's plea and promised to help her save Earth.

After mastering flight in the Transcendence Armor, Lin Li learned that Kara had gone missing and raced to the DEO. The DEO mistook his arrival for an attack, but Barry recognized him after he dodged an interceptor missile and landed inside.

• Lin Li practiced flying at speeds close to Mach 7, then received Barry's message that Kara was missing.
• Barry told the DEO that Lin Li was on his way, while Hank Henshaw and Alex Danvers reported that Astra had taken Kara.
• DEO agents detected a silver mass approaching at Mach 6, and Hank ordered them to fire an interceptor missile.
• Lin Li dodged the missile, prompting Barry to recognize him as the silver light.
• Lin Li crashed through the ground above the DEO and landed in front of Barry, Hank, and Alex.

After Astra abducted Kara, Lin Li learned that the Kryptonians were likely hiding at Fort Rozz and set out to investigate alone. Barry stayed at the DEO while its agents continued searching for Kara.

• Alex Danvers told Lin Li that Astra had taken Kara, and Hank Henshaw said the Kryptonians had vanished after leaving Nashino City.
• Lin Li asked where the Kryptonians had first appeared, and Alex Danvers reasoned that they might be hiding at Fort Rozz.
• After an agent showed him the Nevada routes, Lin Li decided to travel to Fort Rozz while the DEO searched for Kara.
• Barry offered to accompany Lin Li, but Lin Li told him to stay at the DEO in case he was needed.
• Lin Li ate to replenish his energy, then flew toward Fort Rozz alone.

General Mathers put the missile silos on alert after the DEO identified the silver light approaching Fort Rozz as one of its personnel, Lin Li. Lin Li reached the military-controlled Nevada site and spotted a Morse-code signal inviting him over.

• A soldier reported that a silver energy mass was heading toward Fort Rozz, and General Mathers ordered cruise missiles to target it while he alerted the White House.
• Hank Henshaw told General Mathers that the silver light was a DEO operative and that the agency suspected a Kryptonian legion was hiding in Fort Rozz.
• General Mathers raised the missile silos to Level Four alert, aimed nuclear warheads at Fort Rozz, and went to the silos to prepare them.
• Lin Li arrived above the Nevada Nuclear Test Zone, saw the military forces guarding Fort Rozz, and prepared to fly past them.
• A large lamp flashed a Morse-code message asking Lin Li to come over.

Lin Li rejected Sam Lane’s request to serve humanity, then flew toward Fort Rozz with the military’s maps and research clearance. Inside the prison, Non prepared a Kryptonian soldier to capture him.

• A colonel led Lin Li to Sam Lane, who showed him the military’s map of Fort Rozz and asked him to investigate for surviving Kryptonians and hand over any technology he found.
• Lin Li told Sam Lane that he would help only those who treated or helped him, and that he would not take responsibility for Earth’s humanity.
• Sam Lane opened the military’s Fort Rozz research files to Lin Li, then left him alone in the command tent.
• Lin Li flew from the military base toward Fort Rozz while Sam Lane ordered his forces to move.
• Non watched Lin Li approach Fort Rozz and ordered a soldier to wear an anti-kryptonite radiation suit and capture him.

Lin Li confronted the Kryptonian Kabeet above Fort Rozz and killed him with a high-speed charge. Albert’s soldiers confirmed Kabeet was dead, while Lin Li disappeared into the darkness.

• Albert’s special response squads waited near the cloaked Fort Rozz until the fortress revealed itself from within.
• Kabeet emerged from Fort Rozz and looked down on the human soldiers as Lin Li approached in a streak of silver light.
• Kabeet dodged Lin Li’s incoming charge, but Lin Li reached him and struck him before the soldiers below could see a battle.
• A blue light fell from the sky, and Albert’s soldiers opened fire on Kabeet with ordinary and kryptonite bullets.
• Albert’s soldiers found Kabeet dead and saw no sign of Lin Li in the dark sky.