Actress Maddie Banks has landed the female lead in the new hit Broadway show "Worst Case Scenario," but her elation is cut short when the son she gave up for adoption 26 years ago shows up, announcing that his adoptive mother has died.

Maddie tries to adapt to her life as a mother; Arlo wonders if he will ever have a real relationship with his mother.

After hearing Arlo's karaoke talent at his birthday party, Maddie is thrilled to find a connection with him and decides to make him a star. Against his wishes, she pulls some strings to try to set him up with a record producer.

Hoping to lift Arlo's spirits, Maddie, Thelma and Frank decide to finally celebrate Christmas for once. Buoyed by the sudden holiday cheer, Arlo surprises Maddie with an unwelcome gift, her estranged mother.

When Kathy Griffin looks at a penthouse across the hall, Maddie goes to great lengths to remain the biggest star in her building.

After firing a stagehand, Maddie consoles him with a one night stand; Frank asks Arlo's crush to be his tango partner.