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