Jamie's dream camping trip is ruined before it even begins when he finds out that his beloved cousin is bringing her new boyfriend. However, Jamie's initial jealousy of the competent and confident Dan quickly becomes a friendship, as they bond over cooking, games, and being "big boys."

As the weekend progresses, Jamie's brother's attempts to set him up with a girl staying at the campground fall away as Jamie wants to hang out with Dan. As his burgeoning crush gets him into awkward scrapes and arguments, Jamie comes to terms with who he is and desires. Hilarious and heartwarming, Big Boys is the type of coming-of-age film we need more of in this world.