Based on a true story, ‘72 Hours’ follows Joe (Hart), a married father of three who is mistakenly added to an email thread planning a bachelor party for a group of 20-somethings from different parts of the country. Initially, Joe simply enjoys reading the messages, reminiscing about his own younger years. However, he eventually decides to clarify the mistake and reveal his identity to the group. To his surprise, the best man, Nick, extends a real invitation for Joe to join the trip. What Joe doesn’t realize is that Nick has ulterior motives. He hopes Joe’s presence, as a family man, will make the groom-to-be, Mason, reconsider marriage. But as the bachelor party unfolds in Miami, neither Nick nor the rest of the group—Mason, Silverman, Castillo, and Ava—anticipate the unexpected impact Joe will have on their wild weekend.