Henry Hamilton (Steve Nevil) is a ghost who has graduated from Spiritual Specter University and gets his first haunting assignment.

Bollo (voiced by Michael Bell), a leopard brought to New York to be made into a fur coat, manages to escape to Washington to try to get Congress to declare him an endangered species.

Bunjee (voiced by Frank Welker), Karen (voiced by Nancy Cartwright) and Andy (voiced by Robbie Lee) must use the time machine once again and set out on an adventure to find a mother for the Bunjee babies.

Bunjee, Karen and Andy are transported back to medieval times where they must go through the obstacle of facing off against a malevolent sorceress and a three-headed dragon; eventually, they find a mother who also becomes Bunjee's mate named Bunjana and the kids return home to modern times.