Stuart finally tells Elizabeth how he feels about her and wins her back from Ben.

Stuart, an office loner, discovers that he can manipulate the reality of his office from a magical keyboard. He tries to use these powers to tell the girl he loves his true feelings, but his immature boss Ben gets in the way.

Stuart gives young Ben a life lesson in the past, but when he returns to the present, everything has changed. He is now the boss, but unfortunately, Ben is engaged to Elizabeth.

Stuart shares his keyboard secret with Elizabeth. They have fun at the expense of Ben, but begin to wonder what other powers the computer holds. Stuart takes it too far and copies and pastes different versions of himself around the office.

Stuart manages to fix the keyboard but ends up going back in time to his first day on the job 15 years ago. He meets a 12-year-old Ben.

Stuart discovers that his keyboard has other magical functions. He presses CTRL B and is empowered to confront his immature boss. But Stuart takes things too far and after being fired, he tells all his co-workers what he really thinks about them.

Stuart finds his keyboard discarded in the trash after being kicked out of the office. By clicking CTRL Z, he's taken right back to the beginning of the day and summons the courage to tell Elizabeth how he feels about her.

Ben is now fully aware of the keyboard's magic powers. Ben and Stuart have a confrontation while Elizabeth remains stuck in the Philippines. Stuart manages to get the keyboard from Ben and sends him to the recycle bin.

There are three copies of Stuart wandering around the office. How will he keep it from his boss Ben? Stuart begins to realize the full power of the keyboard.

The multiple Stuarts continue to cause problems for Stuart and Elizabeth. Things only get worse when CTRL Home sends Elizabeth back to the Philippines.