Ben channels his inner Scrooge as he detests everything that has to do with the holiday season - the shopping, the crowds, the tree trimming, even the pageant at Emma's daycare. Adding to his bad mood are Bonnie, Riley, Danny and Tucker, who are overflowing with cheer until Ben can't take it anymore and wishes there was no such thing as Christmas. But when his wish comes true and the holiday vanishes, he unwittingly erases Emma's existence and alters the course of everyone's lives. Can Ben get his loved ones to believe in Christmas and bring Emma back before it's too late?

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.