After Ron Stoppable and Kim Possible get married they become the proud parents of two beautiful and identical twin girls. However, as time goes by they drift farther apart and wind up getting divorced. Annie Stoppable is busy living a normal life with her father completely oblivious to the fact that not only does she have a twin sister, (Summer Possible) but she is also a spy!

And then came the time when mighty heroes banded together. Danny Phantom, Randy Cunningham, Jake Long, Kim Possible, Ron Stoppable, Ben 10, Generator Rex, Zak Saturday, Lance, Ilana, Octus, XJ9, El Tigre, Max Steel, Star Butterfly, Marco Diaz, Cat Noir, and Ladybug. These heroes must stop the Darkentors form taking over their dimensions. Unite Infinity Legion! Chapter 6 Surprise!