Ace Hart balks at the idea of being surrounded by "musclebound supermutts," so Eliot sends him to accompany Eddie to the Dog City Comic Book Convention. Eddie is thrilled by the modern heroes, but scoffs at the old-hat comics starring the Watch Dog. When Bugsy Vile and his gang plot to steal the one hundred rarest comics, however, they are beaten to the bunch by a new pack of crooks, the Labrador Gang. The Labradors are themselves captured by the Watchdog, surfacing mysteriously on cue.