Opie must either learn how to box or lose prestige among his peers when a new boy moves into town.
Pugsley and Wednesday start a row at a brithday party when their gift of a tarantula upsets Harold the birthday boy. Harold's parents insist that the Addams children lack breeding and therefore are no longer allowed to play with their son. Gomez and Morticia then hire a genealogist to trace their heritage.
In the desert, a gun-wielding camper spots Tim and Martin working on the spaceship.
