Transformers: The Last Knight (2017)

In 484 AD, King Arthur and his knights fight a losing battle against the Saxons. Merlin finds the Knights of Iacon, a group of Transformers hiding on Earth. They hand him an alien staff and transform into Dragonstorm to turn the tide of the battle, but warn Merlin to hide the staff, for a great evil will come for it someday. In the present, One year ago, following the Hong Kong incident, Optimus Prime arrives on what remains of Cybertron and meets Quintessa. Blaming Optimus for Cybertron’s destruction, she brainwashes him, renaming him Nemesis Prime, and sends him to Earth to retrieve Merlin’s staff, which can absorb Earth’s energy and restore Cybertron. On Earth, Transformers remain unwelcome among humanity and are hunted by an international task force called the Transformers Reaction Force (TRF), manufactured from the collapsed Cemetery Wind, while some of the U.S. military personnel, including Colonel William Lennox and General Morshower, are against the new policy.

Cade Yeager, an ally to the Autobots, hides refugee Transformers in his junkyard. In war-torn Chicago, Cade and Bumblebee meets a scavenger Izabella and her Transformer companion, Sqweeks. They retrieve a mechanical talisman from a dying Transformer; Cade has a standoff with the TRF and their leader, Santos, and is saved by Bumblebee, Lennox, and Hound. Megatron and the U.S. government learn of the talisman’s value and form a reluctant alliance to retrieve it. The Decepticons and the TRF locate Cade’s hideout thanks to a tracker planted on Bumblebee. Grimlock and the Dinobots ambush a TRF convoy while Cade, his assistant Jimmy, Izabella, and Sqweeks lure the Decepticons and the TRF to an abandoned town where the Autobots ambush and defeat them. Cogman, a human-sized Transformer, appears and invites Cade to the United Kingdom to meet his employer, Sir Edmund Burton, who is connected to the Transformers. Burton asks another Transformer, Hot Rod, to find Viviane Wembly, a University of Oxford professor.