The story of a mild-mannered radio executive who strives to become the best stepdad ever to his wife's two children, but complications ensue when their freewheeling, freeloading real father arrives, forcing stepdad to compete for the affection of the kids.
The Autobots continue to work for NEST, now no longer in secret. But after discovering a strange artifact during a mission in Chernobyl, it becomes apparent to Optimus Prime that the United States government has been less than forthright with them.