Trapped in a massive firefight with a horrific tentacled behemoth, the B.P.R.D. are rescued by another wild monster, while one agent chases the evil responsible for this chaos. Written by Mike Mignola and John Arcudi and drawn by Eisner Award-winning artist Guy Davis (The Marquis). Bureau agents and hideous monsters collide in a furious battle!
— Description from Comic Vine community (comicvine.gamespot.com).
