 Lady Lotus, an evil sorceress, attempted countless times to retrieve an ancient katana which possess great power from Naguchi. Meanwhile, a group of friends are planning a camping trip and follow an all girls class. However, everything gets awry and the friends are left stranded in the mountains. While navigating their way back, they stumble across a hidden cavern. There an old ninja master lives, who choses the boys to become ninjas and retrieve the katana that Lady Lotus is searching for. The boys are manage to find there way back home only to fight an endless swarm of adversaries from a rival basketball team to mountain headhunters to common criminals all leading to the boys confrontation with Lady Lotus and her Black Ninja army.