"In any war, there are calms between the storms. There will be days when we lose faith, days when our allies turn against us. But the day will never come, that we forsake this planet and its people."

Following the events of Transformers: Revenge of the Fallen, the Autobots are working hand-in-mechanical-glove with human authorities (in other words, the apparently all-powerful CIA), keeping close watch for Deception activity, but also helping out in human-on-human conflicts. Meanwhile, Shia LaBeouf has traded in improbably hot girlfriend Megan Fox for the equally improbable Rosie Huntington-Whiteley (an improbability that the script does have some fun with). He is also out of work and dismayed at not being given due consideration as a savior of the planet.

"Before time began, there was the Cube. We know not where it comes from, only that it holds the power to create worlds and fill them with life. That is how our race was born. For a time, we lived in harmony. But like all great power, some wanted it for good, others for evil. And so began the war. A war that ravaged our planet until it was consumed by death, and the Cube was lost to the far reaches of space. We scattered across the galaxy, hoping to find it and rebuild our home. Searching every star, every world. And just when all hope seemed lost, message of a new discovery drew us to an unknown planet called... Earth."

In this version of Transformers, Earth is caught up in an age-old conflict between two factions of an Autobot society.