Hellboy and his B.P.R.D. team must uncover a dangerous weapons project before its monstrous side effects can be unleashed. The team faces opposition from unknown forces as they investigate a volatile new project, navigating a world where the paranormal and clandestine operations collide. The narrative follows Hellboy's efforts to expose this threat, encountering both physical and logical obstacles within the shadowy confines of the Bureau for Paranormal Research and Defense.

This collection of Hellboy stories from 1955 offers a deep dive into the Bureau for Paranormal Research and Defense's clandestine operations. The narrative threads weave together to reveal a volatile weapons project with monstrous consequences, showcasing the collaborative efforts of writers Chris Roberson and Mike Mignola alongside artists Shawn Martinbrough, Brian Churilla, and Paolo Rivera. The collected issues explore the supernatural and the shadowy aspects of paranormal investigation, providing a focused look at a specific year in Hellboy's career. Readers can expect a blend of action, mystery, and horror as the team confronts a dangerous new threat.