Transformers: Defiance - The Revenge of the Fallen Movie Prequel #4

The explosive conclusion to the official prequel to the TRANSFORMERS: REVENGE OF THE FALLEN film! With their forces united, the DECEPTICON army prepares to leave CYBERTRON on a mission of galactic conquest. But the AUTOBOTS and their leader, OPTIMUS PRIME, plan to do the unthinkable in order to defeat the increasingly-powerful MEGATRON.