Transformers: Revenge of the FallenThe Fallen was one of the seven Primes who led the Transformers in quests to harvest suns for Energon, the transformer's equivalent to petrol or food. The Fallen was once trying to harvest the sun of Earth but found that humans inhabited the planet, the Fallen despised the humans and did not pay attention to the prime's rule: they must never harvest the sun of an inhabited planet. The Fallen was then banished from earth by the other primes and since then he has been laying in wait on Cybertron for all of the primes and the primes decendants to die.