Alex, comfortable in Compton and falling hard for Livvie, is betrayed. Jonah gives Leslie a mission to retrieve his DNA from the Yorkeses while Catherine exacts vengeance against Darius. Janet decodes the Abstract and Molly sneaks out to fight crime.
Topher helps the kids break into Atlas Academy, but the plan is blown when Dale and Stacey trigger an earthquake and the parents rush to the scene. Jonah's body continues to break down as he leads Karolina into the hole.
PRIDE grapples with the moral implications of Jonah's latest offer: freedom. Jonah, weakening, begins to eye his next target. After learning that Jonah is after another sacrifice, the Runaways realize they have to stop him before he kills another kid.
It's time for the Runaways to stop Jonah, once and for all. But while the kids scramble to stall out Jonah's plan, the parents unexpectedly arrive. Will PRIDE fight against their own kids or join their ranks against the powerful, and vengeful, Jonah?
In the aftermath of the battle against Jonah, Karolina searches for answers about Jonah and the others help Alex and Livvie try to prove Darius's innocence in Destiny's murder. But Livvie's curiosity might just catch up with her.
Leslie starts dismantling the cult she helped create, but Frank has other plans. AWOL uses Livvie as bait to confront the Runaways. The teens must protect Gert and Old Lace, who are sick, and AWOL's team storms the hostel. Victor doesn't feel like himself.
The Runaways are falling apart. Needing a break, they throw Molly a quinceañera. PRIDE ramps up their new arsenal. Frank puts Leslie in a facility to bring her back to the faith. Meanwhile, the mysterious voice Karolina has been hearing becomes real.
Victor recruits Chase to intern at PRIDE to prove that they are nothing more than concerned parents, Chase is skeptical. Karolina discovers Frank is holding Leslie at a detention facility and tries to rescue her mom with Nico, Molly, and Vaughn.
Angry at his betrayal, the Runways meet with Chase. He offers them a choice: surrender to PRIDE or face the consequences. As the kids attempt their escape, they're separated and forced to survive against an enemy far more pernicious than they expected.