Transformers: Legacy of Prime

It's been years since the uncovered existence of the mechanical extraterrorestrial beings known as cybertronians. We were introduced to the Autobots and their leader Optimus Prime along with their enemy faction the Decepticons led by Megatron. Humans and the Autobots have united to defend the planet known as Earth. Though in the passing time in the shadows things have been shifting within the Decepticons. A new leader has forced command from Megatron. Their most powerful warrior has been lost. The autobots find new companionship and the lives of four teenagers is changed forever.