Maggie goes into labor on Ben's Birthday, and she gives birth to a baby girl, meanwhile Ben wanders around the hospital and befriends a old guy named Chris. At the end Ben names his baby sister Chrissy.
Ben wants to score a date with a classmate who is not allowed to date. He throws himself a spontaneous birthday party at home and invites her. With help from Mike and Carol, they concoct a scheme to make it all happen.