The Forman's family dinner night gets canceled and Marvin ends up overindulging in chocolate. However, this results in Marvin getting an alien toothache which brings the family together just when they need it the most.
Teri and Briana plot revenge on a boy who seems to have asked both of them out on a date. Meanwhile, Marvin learns what an 'expiration date' means and that the term doesn't mean the same thing to people as it does to old food.