"B.P.R.D." stands for "Bureau for Paranormal Research and Defense," a comic book series published by Dark Horse Comics. It is a spin-off of the popular Hellboy series, created by Mike Mignola. The story follows a team of paranormal investigators who confront supernatural threats, including monsters, ghosts, and otherworldly beings. The main characters include Liz Sherman, a pyrokinetic, and Abe Sapien, an amphibious humanoid. Together, they work alongside Hellboy and other agents to protect humanity from dark forces. The series explores themes of heroism, sacrifice, and the complexities of the supernatural world.