The Monkees rescue Princess Bettina, Duchess of Harmonica (Katherine Walsh) from her evil uncle Archduke Otto (Theodore Marcuse).

Stranded in a ghost town after their car runs out of gas, the Monkees are held prisoner by bank robbers (Len Lesser, Lon Chaney Jr.) and their boss, "The Big Man" (Rose Marie).

The Monkees' appearance on popular children's show The Captain Crocodile Show is sabotaged by its host (Joey Forman), who fears that his guest's popularity is diminishing his own.

Middle-aged widow Millie (Rose Marie) moves in with the Monkees as a new tenant, resulting in the boys' trying to find her a husband.