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.
Ben and Riley work on being a couple; Angela tries to prove that she's a responsible parent.
Angela's presence strains Ben and Riley's relationship; Bonnie dates a younger man.
Ben catches Riley with old beau Fitch; Danny appears as a guest on Mary Hart's new talk show.
Riley baby-sits a troublesome client; Ben causes Bonnie's real estate career to go up in flames.
The guys scheme to keep their rooftop beach by overthrowing the current apartment Board President.
Riley uses Danny in an attempt to impress a friendly adversary; Bonnie needs a new business slogan.
Tucker tries to deceive his father; a trip to a Renaissance fair leads to subway shenanigans.
Riley is determined to keep her career path out of Bonnie’s line of fire.
Ben realizes the animated young woman Bonnie fixed him up with is a miniature version of his mother.
Ben pulls out all the stops to give Emma the perfect first birthday party at an ice-cream parlor.
Bonnie realizes how much she misses her ex-boyfriend, Brad, and turns to Tucker for help reuniting with her true love.
Ben tries to score Bon Jovi tickets for Bonnie; Riley and Danny act as prom chaperones.
Riley searches for her biological father; Bonnie tries to loosen up Tucker's uptight father.
Philip's sister is less than impressed with Riley; Bonnie's actions threaten Danny's career.
Riley, Ben and Danny take stock of their lives when they review their fifth-grade time capsules.
Bonnie, Tucker, Danny and Riley recall how their lives have changed since Emma's arrival.
Ben and Tucker pose as fraternity pledges after Bonnie sells their money-stuffed foosball table.
Ben hopes to rekindle his romance with Riley when he joins her on a train trip to Florida.
Riley and Ben learn the truth about Danny's feelings for Riley; Danny considers moving to Paris.