Pat Nelson is the coach of his 12-year-old son Zack's basketball team. On the eve of the season opener, Pat learns that his ex-wife and high school sweetheart, Sophie, is engaged to Jeff, a wealthy British gastroenterologist. Distraught, Pat drinks the night away and shows up to the game hungover. As the game unfolds, he must contend with Jeff's presence in the stands, helicopter parents, an unhinged opposing coach, and his own insecurities -- all while trying to be a good dad.