John and Jane Smith find out each other's jobs after nearly killing each other in the desert while trying to kill the next mark, Ben "The Tank" Danz. After trying to kill each other after seeing their next assignment is each other, they realize they can't do it. After their 48 hrs to take out each other is up, they team up to get The Tank out of a jail and get information from him that they realize that their agencies sent them to the same hit to kill each other. They team up and fight their agencies off. They win and they go back to the marriage therapist in the beginning and tells him they are very happy!