Both films are anthologies and contain the full-length titles named Sword of Storms and Blood and Iron, received the signature of Mike Mignola and Guillermo del Toro.
Selma Blair and John Hurt also reprise their roles from the film Liz Sherman and Professor Trevor Bruttenholm, respectively.
In Sword of Storms (2006), Hellboy and Kate Corrigan are dispatched to Japan to solve the mystery of a professor possessed by the Japanese demons Thunder and Lightning.
Additionally, a minicomic titled Phantom Limbs (written by Jim Pascoe with art by Rick Lacy) was included with the DVD of Sword of Storms.
Another minicomic, The Yearning (written by Jim Pascoe with art by Ben Stenbeck) was included with the DVD of Blood & Iron.