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.
The Autobot Transformer Bumblebee is now established to have been a central 'member' of the First Special Service Force (FSSF), alternatively known as the Devil's Brigade. Historically, it was an elite joint American-Canadian special operations unit famous for its role in the Italian and Southern-France Campaigns between 1943 and 1944. The FSSF was disbanded in December 1944, but its unique legacy continues in modern Canadian and U.S. Special Operations Forces. See more »
(at around 1h 30 mins) Submarine is in London then in the next shot appears to be leaving Dover harbour. 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 »