Transformers: Age of Extinction

It has been 4 years since the tragedy in Chicago, and humanity is still rebuilding, but both the Autobots and the Decepticons have vanished from the face of the Earth. Now the United States Government is using technology salvaged from the Battle of Chicago to develop its own Transformers. Leading the project is Joshua Joyce, an arrogant designer who thinks the Autobots are “technological junk” and believes he can build infinitely more advanced robots. Meanwhile, Cade Yeager, an inventor and mechanic, finds a Marmon semi-trailer. As he tries to repair it, he discovers that the truck was not just a Transformer, but none other than Optimus Prime, leader of the Autobots. What Cade doesn't realize are the consequences that may follow from this discovery.