Alien vs Ninja is an action flick that pins a clan on ninjas against aliens from a different planet. After a comet is seen and crashes into the forest surrounding the ninja, a group goes out to see what the disturbance was. When they reach the crash the quickly discover that the comet was really a space ship and the forest is being over run by alien invaders. To ensure the safety of the village the ninja clan suits up and prepares for a battle to death against the invaders from outer space. With everything on the line, the ninjas prepare for the ultimate showdown.