Steve Tobias is an undercover agent of the CIA whose son, Mark, is getting married to Melissa Peyser. Her father is mild-mannered foot doctor, Jerry Peyser. When the two families meet for dinner, Peyser stumbles on to Steve Tobias' secret operation as Tobias tries to set up a deal to sell a Russian submarine, the Olga, to an arms smuggler in France as bait to catch arms smugglers. As Peyser's incidental involvement increases, he is suspected by the FBI of being part of a seemingly malicious deal. Dragged kicking and screaming, Peyser decides he does not want to be involved in the deal or with Tobias' family. The two future fathers-in-law end up dodging bullets, jumping off buildings, and stealing jets together as they attempt to avoid capture by the FBI.