Three adventurous boys—Rocky, Colt, and Tum Tum—join forces with their tech-savvy neighbor, Amanda, for a fun-filled day at Mega Mountain amusement park. Their excitement quickly turns to chaos when an army of ninjas, led by the nefarious Medusa, launches a surprise invasion. Medusa’s sinister goal? To take control of the amusement park and hold its owners for ransom.
As panic ensues, the kids find themselves in a race against time to thwart Medusa’s evil plans. Adding to the excitement, retired TV star Dave Dragon, who is making a special farewell appearance at the park, becomes an unexpected ally in their mission. Together, they must use their wits, bravery, and teamwork to outsmart the ninjas and save the park from falling into the wrong hands. Can they overcome the odds and restore peace to Mega Mountain before it’s too late?