Iron Claw ordered him to steal a haul of gold from a secured vault with the help of the Crimers. They attempted an escape by cover their escape route from the robbed vault by covered the underground tunnel with a fake wall. Then make their get away by transporting the gold in an unmarked truck. However Heart Queen was able to determine the identity of their truck by scanning which one had gold in the cargo bend, first with her magnetism and then using radar on Sky Ace. The J.A.K.Q. was able to stop Devil Killer and the Crimers right at their tracks before they could send back the gold to Iron Claw, with Devil Killer ultimately being destroyed by the J.A.K.Q. Covack. Ep. 1: 4 Cards!! The Trump is J.A.K.Q.