After a daring escape from East Germany where he gets rescued, and in the process saves a fellow operative with a quick mechanical fix, MacGyver thinks that he deserves some peaceful vacation time. But Pete lures him into baby-sitting a Russian defector who can identify KGB agents.

MacGyver's friends throw a birthday party for him, but he's somberly reflecting on his past and future. While reflecting, MacGyver decides to leave the Phoenix Foundation to get married and have a family. Can Pete convince him of how important he is to the Foundation and get him to change his mind?