The Gibborim Magistrate and his family have possessed various Pride parents, including Victor Stein and Stacey Yorkes, to use them as hosts while they plot an invasion.
The season begins with the remaining Runaways—Nico, Alex, Molly, and Xavin—desperately searching for , who were captured or separated at the end of Season 2. Marvel's Runaways - Season 3
Karolina, Chase, and Janet Stein are held in a virtual reality "simulation" that mimics their ideal lives. The Gibborim Magistrate and his family have possessed
The Runaways eventually free their friends using Gib-inhibitor technology, but Janet Stein sacrifices herself to remain in the algorithm, allowing the others to escape back to the real world. The Arrival of Morgan le Fay including Victor Stein and Stacey Yorkes
The third and final season of Marvel's Runaways shifts from a grounded story about teens escaping their parents to a high-stakes supernatural battle involving alien possession and dark magic. The Search for the Captured Runaways