Sam Witwicky () succeeded in preventing the "Decepticons" and "car people" Transformers factions battle to save the world after two years, although he is considered a hero, but he was a teenager, going to college for it is full of anxiety, especially to leave his girlfriend Mikaela () and the first time away from his parents. He must also explain to the Transformers "Bumblebee" who stayed behind to guard him that he doesn't want him to go to college with him, because Sam only wants to live an ordinary college career, but if he does this, he must put aside his fate . Just as Sam wanted to forget as much as possible the events that were previously involved in the Transformers War, that war caused a lot of changes. Seventh District closed by the government, and loyal Simon () were dismissed. One is called NEST units replaced the seventh district, they use Lannuo Si Lieutenant Colonel () and Epps () once and "Decepticons" played against The experience, and the "Autobots" work together to prevent the "Decepticons" from wreaking havoc on the earth again. It is a pity that the short-sighted National Security Agency adviser of the US government only wants to control all US defense units and their power. At the same time, he believes that NEST is an irrelevant unit, because the "Decepticons" no longer pose a threat, so he plans to close NEST. He believes that humans should not be involved in the dispute between "Autobots" and "Decepticons".
When Sam finally get rid of the annoying chatters been to his parents, he came to his dorm room, only to find his roommate Leo () In addition to being a crazy otaku computer, also I want to do anything to University school beauty Alice (). At this time, Sam's mind suddenly seemed to be struck by lightning, seeing scenes after scenes of images flashing in front of him. He was very afraid that he was going crazy like his grandfather, and he refused to tell the secret at first, but later discovered that these symbols that appeared in his mind must not be ignored. This time his original plan to live an ordinary life was ruined again. Sam was once again involved in the war between the Autobots and the Decepticons. This time it would affect the fate of the entire universe, but Sam didn’t know that this is good and evil. The key to the battle lies in his hands. But relying on his friends, his comrades in NEST, and even with the help of his parents, Sam finally accepted the innate responsibilities of the Witvic family, no longer evaded the responsibilities he had to bear, and truly learned not to sacrifice There is no meaning of victory.
