Lachesis, Atropos, and Astra steal the Waverider with Gary as a stowaway. They disable Gideon.
The Legends are stuck in England. They set out for a Time Bureau safe house in London so that they can get a Time Courier and get to the ship. They steal a bus.
Sara's powers aren't working, so Ava takes point on this mission.
Atropos imposes a zombie apocalypse in England.
Gary zaps himself trying to get Gideon back online. He wakes up and finds Gideon in her physical form waiting for him.
The bus breaks down and Zari and Constantine split from the group to find a different mode of transportation.
Gideon distracts Atropos as Gary retrieves the rings of the Loom of Fate.
The military shows up to where the rest of the Legends are waiting. One soldier shoots Ava in the head, but she doesn't die as she is immortal from drinking out of the Chalice of Dionysus.
The military thinks they are sentient zombies and take them in.
Zari and Constantine find a new van, but they are cornered by zombies.
The rest of the Legends escape military custody.
Constantine stops Zari's heart to get them past the zombies. He restarts it and they escape with the van.
It is revealed that Gideon was just a figment of Gary's imagination when he is confronted by Lachesis, Atropos, and Astra. He uses a spell to hide the rings from them.
Zari and Constantine pick up the Legends and they arrive at the Time Bureau safe house. The Time Courier is dead.
Zari and Constantine kiss.
Sara tells Ava that she lied to her about her powers being on the frits. She saw a vision of the zombies killing her in the Time Bureau safe house.
The zombies surround the safe house just as the Legends' immortality runs out.
Astra turns against the Fates and Atropos kills her.
The zombies break into the safe house and attack. They kill Sara.
The Time Courier charges and Charlie uses it to get back to the Waverider. The rest of the Legends are overtaken by zombies.
Charlie gets the rings from Gary and Lachesis kills him.