The week Sam Nussbaum is to be married, his fiancé questions why his only brother, Tom, isn’t coming to the wedding. Unsatisfied with his lame reply, she surprises Sam by bringing the brothers together. Sam is not happy, but he rarely is - unless he's telling someone what to do. When it's revealed that Tom has only been in love once - with his fifth grade girlfriend - Sam insists they go find her. It soon becomes evident that their journey is simply an excuse for Sam to avoid his impending commitment.