Overview: Brian explains to Cathy that he and Christine are plotting to pass her baby off as their biological child in order to inherit money from Christine's wealthy father. Merle offers himself as a donor for Charlie's transplant, but Charlie refuses after learning that Dr. Fratkis has located a donor, unaware that the donor isn't human. Mary arranges a party for Tom, who announces that he's been promoted to general manager. Pat gives Mary a sober warning about Tom, but Mary is confused about what never comes: yesterday or tomorrow.