When alien supervillain Orson Ooze escapes from space jail, the Galactic Ministry must find Earth's finest heroes to defend their planet.
Believing that Ken and Philip are the new Space Riders, Orson Ooze sends his moon monster to destroy them.
Orson Ooze tries to use a captured Ken to get all the criminals released from Space Jail.
Philip must travel to space to save Ken -- if he can figure out how to get there.
Ken wants to celebrate their new lives as heroes, but the power of being a Space Rider has gone to his head.
After Ken is locked up for abusing his powers, Philip is left alone to defend Earth.