Episode Title:Behind the Mask - Halloween.Episode Description:On Halloween, Mark throws a party at his house but has to rescue Chuck when Pigface and Dirt Rat mistake him for Ace, since he is wearing an Ace Lightning costume. Meanwhile, Duff turns to Ace for help to rid himself of Lord Fear. When they go to confront Fear, Duff chickens out and tries to set up Ace into a trap, but the superhero escapes, also rescuing Mark and Chuck from their pursuers.