The Runaways spring a trap to rescue their missing friends from Jonah and his family.
Karolina, Chase and Janet plot their own escape from the Algorithm, while in the real world the rest of the Runaways team up to fight Jonah and get them out.
The Runaways become suspicious of one another with a traitor among them. Catherine takes responsibility for her past. Leslie seeks help protecting the child growing inside her.
The kids search for Leslie and Alien Alex. Meanwhile, Leslie gives birth and Xavin fulfills her prophecy. The kids go head to head in a final battle against the aliens.
The kids find themselves in an alternate dimension full of visions from their past. They must find their parents and Alex before time runs out. One person is left behind.
After being trapped in the Dark Dimension for six months, the kids must contend with the new Wizard phone craze that is sweeping the city and may hint at darker things to come.
The kids try to get the message out about Morgan's phones and Molly falls for a boy while the Minorus unite as a family to steal Morgan's most prized possession.
Nico convinces Cloak and Dagger to take the Runaways to the Dark Dimension to save Alex, but it's Alex who ends up saving them all.
The remaining PRIDE members unite with the kids to foil Morgan's plans, but as a battle rages in the Hostel, one of the Runaways pays the ultimate price to defeat her.
Two years after defeating Morgan, visitors from the future send the Runaways back through time to prevent their own murders and even save a friend thought lost forever.