Autobots and Decepticons are at war, with humans on the sidelines. Optimus Prime is gone. The key to saving our future lies buried in the secrets of the past, in the hidden history of Transformers on Earth.
Autobots must escape sight from a bounty hunter who has taken control of the human serendipity: Unexpectedly, Optimus Prime and his remaining gang turn to a mechanic, his daughter, and her back street racing boyfriend for help.
Optimus Prime finds his dead home planet, Cybertron, in which he comes to find he was responsible for its destruction. He finds a way to bring Cybertron back to life, but in order to do so, Optimus needs to find an artifact that is on Earth.
Daytrader brings Starscream's head to the junkyard, and Megatron is later seen holding it when he and his Decepticons arrive. However, the head here is fully intact, when in Transformers: Dark of the Moon, Starscream lost his eye and his head was blown apart by Sam. See more »
Where the hell is your so-called magician, Arthur?
He'll be here, Lancelot!
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SPOILER: There is a scene in the closing credits: a human team is investigating Unicron's horn in the desert, and Quintessa in human form meets them and offers her assistance. See more »