Marty and Doc are at it again as the time-traveling duo head to 2015 to nip some McFly family woes in the bud. But things go awry thanks to bully Biff Tannen and a pesky sports almanac. In a last-ditch attempt to set things straight, Marty finds himself bound for 1955 and face to face with his teenage parents -- again.
Carmen and Juni think their parents are boring. Little do they know that in their day, Gregorio and Ingrid Cortez were the top secret agents from their respective countries. They gave up that life to raise their children. Now, the disappearances of several of their old colleagues forces the Cortez' return from retirement. What they didn't count on was Carmen and Juni joining the "family business."
9-year-old Alex Pruitt is home alone with the chicken pox. Turns out, due to a mix-up among nefarious spies, Alex was given a toy car concealing a top-secret microchip. Now Alex must fend off the spies as they try to break into his house to get it back.
