An ecstatic Annie bursts in on Caroline and Trevor to announce that her mother is finally moving out to live with an aunt in the suburbs. When Caroline discovers that Trevor has left his toothbrush behind, she begins worrying about whether their relationship is moving too fast, then decides to get a key cut for Trevor, then takes Annie's advice not to give it to him yet - only to discover that a distracted Richard has already done so. Both Richard and Caroline pursue Trevor to his gym, where they have to fend off the attempts of an over-motivated employee to sign them up as members and where Caroline and a flustered Trevor finally reach an understanding of sorts in the steam room. Meanwhile, Del and Charlie pursue their daftest promotional scheme yet: kidnapping the Central Park groundhog so that when he emerges he will be wearing a little Caroline in the City cape. Naturally, this scheme backfires, along the way ensuring that Annie's mother doesn't move out after all. (So now that she's back, where has she been?)