When Andrew McLaren is fired from his job at Anderson Technology, he suspects that he's being let go because the company president doesn't want to give him credit for his work on the CPS-1200, an as-yet untested time machine. Defiant, Andrew decides to take a trip in the machine. When he reaches his destination, two days in the future, his head is throbbing with a migraine and he is shocked to find that the police are looking for him. Fleeing the lab, he returns home to discover his wife lying in a pool of blood and a man fleeing the scene in a car. Shocked at his discovery, Andrew is determined to use his time machine to change what happened.