"After the classified, advanced airplane known as the Flying Wing is hijacked by the Nazis, Sledgehammer is sent on a special recovery mission that pits him against the deadly Black Flame! * Cover by Mike Mignola! * From the pages of _Hellboy_! * Laurence Campbell takes the reins of _Sledgehammer_! ""Sledgehammer 44 has been an entirely enjoyable look into a heretofore unexplored portion of both the Hellboy universe and Mike Mignola's storytelling."" - Weekly Crisis ""Laurence Cambell's art is fantastic...The monsters look creepy as always and overall the art is a big highlight of the issue."" - Unleash the Fanboy"