Ben realizes that he made a huge mistake when he drove Riley away; he never should have believed Danny and Riley have feelings for each other, especially since they're now dating other people. Ben knows Ross is all wrong for Riley, so he devises a plan to get rid of him; he's going to turn Ross into a Wheeler. Riley is furious when she discovers that her sweet boyfriend has been corrupted and declares a Wheeler War - a very rare sporting event the family made up to decide important matters. If she wins, Ben, Danny and Tucker have to stay away from Ross. If they win, the boys get to keep hanging out with him, who fortunately has no idea that he is the reason for the War. Meanwhile, Bonnie is determined to join the boys' poker game.

Baby Daddy follows Ben, a young man in his early 20s living the life of a bachelor in New York City with his buddy, Tucker, and his brother, Danny. Their lives are turned upside down when they come home one day to find a baby girl left on the doorstep by an ex-girlfriend of Ben's. After much deliberation, Ben decides to raise the baby with the help of his friends and his protective and sometimes over-bearing mother, Bonnie, and his close female friend, Riley.