It's Fleet Week and Bonnie is getting ready to meet up with her yearly fling, Captain Hudson. But when the Captain proposes, Bonnie panics and thinks the best way to discourage the Captain is by pretending she's in love with Tucker. Ben and Riley try to define their relationship, but they keep getting their signals crossed. In an effort to move on, Ben and Tucker pose as sailors and manage to get aboard the Navy ship. But when Captain Hudson comes looking for Tucker, their real identities as civilians are quickly exposed. Meanwhile, Riley's co-worker Robyn is impressed with Danny and asks Riley to set them up. But when Robyn and Danny hit it off, will Riley recognize what her best friend really means to her?.

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.