Autobots led by Optimus Prime have repeatedly saved our world from the threat of extinction, however, after the battle in Hong Kong, they faced a new danger, which it will be very difficult to cope with. Realizing that alone they can not win, Optimus leaves the Earth and goes in search of new allies. In the absence of his leader, the team of Autobots is trying to prevent Galvatron from building a space bridge so that he can not bring even greater danger to Earth. At this time, people are renewing the creation of Transformers, trying to help the Autobots in an unequal battle. Will they be able to win again and with what enemy they will face this time?..