Four episodes from the animated series about the giant robots that can disguise themselves as ordinary vehicles. After the destruction of Megatron, the heroic Autobots and the evil Decepticons have formed an uneasy alliance. But when the Energon substance is discovered on Earth, a strange new force arrives to take it for itself. As the Autobots prepare to defend the world once more, they learn that an old enemy has returned. Episodes are: 'Megatron Resurrected'; 'Megatron's Raid'; 'StarScream the Mysterious Mercenary' and 'The Battle of the Asteroid Belt'.