I haven't seen this anime but I was wondering if anyone else has? But here's the summary. From the creators of Martian Successor Nadesico comes Dai-Guard, an unconventional giant robot series that follows the exploits of a cash-strapped pilot crew and their desperate attempts to fight back terrifying invaders. About twelve years ago, aliens attacked earth; the government contract to build a superweapon went to the lowest bidder, and by the time the robot was complete, the invaders had left. All that remains is Dai-Guard, a relic from the war and a tourist curiosity. Of course, the aliens eventually return, and itâ€™s up to the crew to see if they can get a cheaply-made, outdated giant robot to fight them off!