Three young boys, Rocky, Colt and Tum Tum together with their neighbor girl, computer whiz Amanda are visiting Mega Mountain amusement park when it is invaded by an army of ninjas led by evil Medusa, who wants to take over the park and hold the owners for ransom. Kids and retired TV star Dave Dragon, who made his farewell appearance at the park at the time the ninjas appeared, have to break Medusa's vicious plans.
- Genre: Family, Action, Comedy
- Studio: TriStar Pictures, Leeds/Ben-Ami Productions, Sheen Productions
- Keyword: sibling relationship, hostage, hero, rivalry, family, escapade, save the day, young heroes, eccentric family, vigilantism, heroic mission, buddies, daring rescue, master villain
- Cast: Victor Wong, Mathew Botuchis, Hulk Hogan, Loni Anderson, Jim Varney, Michael O'Laskey II