Rethink your heroes.
Optimus Prime finding his home planet, Cybertron, now a dead planet, which he comes to find he was responsible for killing. He finds a way to bring the planet back to life, but in order to do so he needs to find an artifact, and that artifact is on Earth.
"Bay's last hoorah is the sci fi equivalent of an all-you-can-eat banquet dinner. The flavours sometimes clash, but there's no doubting its value for money." - Daily Telegraph (Australia)
"Regardless of our opinions, we all know what a Michael Bay film is. This one's his most Baysome." - Time Out