Revenge Of The Fallen Explained

In the present, two years after the events of Transformers, we find Sam Witwicky (Shia LaBeouf) ready to move on to new adventures. The time has come for him to put aside childish things like a shape-shifting robot car and a loving, dedicated girlfriend named Mikaela (Megan Fox) and focus on what's really important: a college education. Unfortunately, his academic future is put in jeopardy when he accidentally brushes up against a shard of the AllSpark, the semi-mystical Cybertronian technology with the power to turn your Zune into a rocket-propelled slaughter-Roomba. Sam winds up with a head full of equations and glyphs that he needs to get out of his head. He also meets a girl who is secretly an evil tongue robot (pictured above), which happens to a lot of guys in college.

Meanwhile, on the more Transformersy side of the plot, Optimus Prime (Peter Cullen) and company have teamed up with the government to hunt down any Decepticons that are still chilling on Earth. Unfortunately, their quarry is more than meets the eye, and the forces of malevolence manage to resurrect Megatron (Hugo Weaving), who it turns out has been answering to the Fallen. Megatron is tasked with killing Optimus Prime, which is rad for Megatron because he was probably planning on doing that anyway. Primes, we learn, are the only Transformers with the ability to kill the Fallen. Also on the agenda: capturing Sam.