Occult investigator Professor Trevor Bruttenholm and a team of war veterans confront a hidden Nazi project in the aftermath of World War II. The group delves into Hitler's secret Project Vampir Sturm, seeking to expose a dangerous villain from the Third Reich and unravel the hidden history of vampires, a quest that threatens to cost one agent his soul and his sanity.

The collected B.P.R.D. stories from 1946-1948 offer a compelling blend of historical intrigue and supernatural horror. Readers appreciate the expansion of the Hellboy universe into the post-war era, exploring the origins of occult investigations. The artwork is frequently cited as a strong point, contributing to the dark and atmospheric tone of the narratives. The series successfully integrates historical elements with its established paranormal lore, providing a rich narrative for fans.