Transformers 4 was started four years after the battle of Los Angeles in the previous Transformers: Dark of the Moon. The story is begun when Autobots have to escape sight from a bounty hunter who takes control of the human serendipity. Unexpectedly, Optimus Prime and his remaining gang turn to a mechanic and his daughter for help. In this part, the story will leads viewers to turn completely new and also plenty of surprises.