Ben and Riley both realize they are in for more than they bargained for with dating older, more mature adults, they work together to come up with a plan to get out of their respective relationships. When Bonnie and Tucker gain insider information about players on Danny's hockey team, they bet against the Rangers to win some cash.

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.