Two middle-aged best friends, Dan and Charlie, own a successful sports marketing firm. Their lives take an unexpected turn when Dan learns that he is the father of seven-year-old twins, Zach and Emily, from a brief marriage seven years prior. The children's mother, Vicki, shows up out of the blue and asks Dan to take care of the kids while she serves a short jail sentence. Despite being utterly unprepared for parenting, Dan reluctantly agrees and enlists Charlie's help to manage the new responsibilities.

As Dan and Charlie navigate the challenges of taking care of Zach and Emily, they find their professional and personal lives turned upside down. From dealing with mishaps at children's birthday parties to enduring comically chaotic mornings trying to get the kids to school, the two friends struggle to keep their business on track while growing closer to the children. Along the way, they encounter various humorous situations that test both their friendship and patience. However, as the days pass, both men start to form a genuine bond with the twins, leading to heartfelt changes in their outlooks on life.