Danny's brother visits to make a major announcement. Danny is excited to introduce Richie to his friends who realize he's gay and worry that his big news is his coming out. At Danny's party for Richie, Morgan learns Danny know about his brother and is fine with his sexuality. When Richie gives Danny a present from their dad, Danny gets upset.
Mindy gets an invitation from her ex-friend Josh. When she can't find a date, she takes Peter up on his offer to go with her. Peter is the life of the party and even impresses Mindy, but when he is found having sex with the bride things get ugly.
Jeremy intervenes and convinces Richie to go talk to Danny. The two brothers make up and are joined at the party by Mindy and Peter who return from the wedding.