by Andrew Olthuis
synopsis
This children's action film is fourth in the 3 Ninjas series. Rocky, Colt, and Tum Tum learn martial arts from their grandfather. While the boys are on a trip to the Mega Mountain amusement park, the evil Medusa leads her Ninjas to the mountain and an all-out battle erupts.
characteristics
- Family Vacations
- Mischievous Children
- Teachers And Students
- Daring Rescues
- Heroic Mission
- Ninja
- Neighbor
- Ransom
- Risk
- Computer-genius
- Computer-whiz
- Martial-arts
- Grandfather
- Danger
- Amusement-park





