Collects B.P.R.D. The Warning #1-5 and the short story "Out of Reach" from Hellboy: Free Comic Book Day 2008.
*The team tracks down the mysterious gentleman who's been appearing in Liz's visions, but soon find themselves in over their heads when old enemies -- from the frog creatures, to the Black Flame, to the last denizens of Hyperborea -- descend to lay waste to the world.
B.P.R.D.: The Warning is the first of three explosive arcs pulling together threads from throughout the series -- and leaving the B.P.R.D. and the world forever changed. *Source: darkhorse.com