Can the heroic Autobots defeat the evil Decepticons? After discovering a mysterious, glowing piece of metal in a hidden cave, Rad and Carlos find themselves in the midst of an earthquake ... and face to face with Megatron and Optimus Prime! As the two robots fight it out, the kids come across the remains of the Mini-cons' spaceship and learn the truth about the Autobots and Decepticons. Includes the episodes "First Encounter" and "Metamorphosis."

Optimus Prime
The leader of the Autobots robots and a powerful force of goodness, courage and wisdom in the battle against the evil Decepticon robots.

Mini-Cons
A lost race of mini-robots that the Autobots and Decepticons are fighting to gain allegiance from.

Megatron
The commander of the Decepticon robots.

Rad and Carlos
The kids who discover the Mini-Cons ship in a cave.