This is probably the most uncomplicated, cut-and-dry, straight forward, simple anime OVA ever. Two military robots get struck by lightning in transport, go haywire in their test mode and end up targeting the granddaughter of their creator for extermination. That's the whole plot. The 45 minute flick is just a breezy action romp. The animation is solid, the story is too simple to have plot holes or twists, and when all is said and done, you'll probably be on Google, wondering if there's more.