Transformers 3: Raid of the Decepticons takes place as Optimus Prime and Ratchet journey to the dark side of the Moon, retrieving Sentinel Prime and bringing him back to life. However, things take an unexpected turn as Sentinel Prime betrays the Autobots, aligning himself with the Decepticons. As the city of Chicago falls under attack from the deceptive forces, Sentinel Prime activates a device called the 100 Pillars Teleportation Device, intending to bring Cybertron into their universe in order to enslave humanity. The Autobots, along with N.E.S.T. and the brave young Zach, must now work together to foil Sentinel