Transformers: Armada

On the mechanical planet of Cybertron, super-robotic organisms known as Transformers are locked in an enduring conflict. The Cybertron army, primarily composed of convoys, and their longtime enemies, the Destrons, vie for control of a new power unique breed of Transformers called Microns. However, distressed by the relentless warfare, the Microns fled to the far reaches of the universe. Four million years later on Earth, three young children activate a mysterious panel hidden within a cave, inadvertently awakening the dormant Micron.