The year is 2010 and the war for supremacy between the Autobots and Decepticons continues. On Earth, a group of kids find a Transformer ship that crash landed long before the dawn of mankind. Accidentally, they activate the ship's long-dormant cargo of Mini-cons, not knowing that the Autobots and Decepticons once schemed to keep this ship and its payload from ever being found.
Mini-cons possess a unique ability to make ordinary Transformers extremely powerful - in fact, both Autobots and Decepticons tried to use them during the Great War. When the ferocity of the war grew out of control, a truce was called and a decision was made to rid the war of these dangerous devices: All Mini-cons were placed into a ship and sent drifting into space for millions of years. Now the Mini-cons have been awakened are on Earth and the Transformers want them back!