It was supposed to be a summer of knot-tying, rafting and rock-climbing at Trail Rangers Wilderness Camp, but when a team of misfit campers discover a secret alien landing site nearby, they have no choice but to protect the world - ranger style.

Armed with 'alienized' wilderness gear, and the help of an extra-terrestrial girl, the team blasts, splats, and booby-traps their way through invaders, all while keeping their cover as normal rangers, having a normal summer...