Dan has much to worry about. He is concerned that he must again co-host the show with substitute anchor Bobbie Bernstein, who is convinced that Dan slept with her and then never called. Dan also discovered Rebecca's ex-husband in her office on a Saturday. Casey is excited about Sports Night's extended coverage of college basketball playoffs. The crew plans a small "Welcome Back" party for Isaac who is late returning arriving from the airport. Dana and Casey's relationship is strained.