Derek Thompson

As a professional monster truck wrestler, Mater must work his way up through the ranks from an amateur tow truck to World Champion Monster Truck Wrestler. But rival wrestlers I-Screamer, Captain Collision, and The Rasta Carian aren't about to give up without a fight.

Mater finds a small UFO called Mator and they have a night out. Later, when Mator is captured by military forces, Mater sneaks up and saves him with the help of Lightning McQueen and the UFO's mother.