A detective and his sidekick are assigned a mission to examine and stop an evil force known as the A12B. Upon investigation, they learn that the A12B has a plot to resurrect every evil villain in the world. Sherlock Cottages and John Voltson must go on adventures and quests to stop them from doing so. On the way, they meet new allies, learn new things, and become better detectives. They surely can't get any worse!