故事发生在前作芝加哥终极决战四年后，自由人（autobots，一译博派/汽车人）与狂派（decepticons，一译狂派/霸天虎）从地球销声匿迹，而人类也在断壁残垣的废墟中开始了新生。然而，一群手握大权的商人联合天才科学家，意欲通过那场入侵打破地球上的技术壁垒，研发出他们实则难以驾驭的全新技术。与此同时，地球也遭受到了一个古老而强大的变形金刚的威胁恫吓，关乎“自由与奴役”的正邪史诗决战，正一触即发。

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transformers: age of extinction is an upcoming 2014 american science fiction action film based on the transformers franchise. it is the fourth installment of the live-action transformers film series and stars mark wahlberg in the lead role. a sequel to transformers: dark of the moon, the film takes place four years after the invasion of chicago. like its predecessors, the film is directed by michael bay and executive produced by steven spielberg. the screenplay is written by ehren kruger, who served as screenwriter since transformers: revenge of the fallen. this is the first film in the series to feature an entirely new cast and the first to feature the dinobots. returning transformers include optimus prime, bumblebee, ratchet, and brains. the film is set for release on june 27, 2014, in imax and 3d.