A beautiful, strong-willed young royal refuses to wed the cruel sociopath to whom she is betrothed and is kidnapped and locked in a remote tower of her father’s castle. With her scorned, vindictive suitor intent on taking her father’s throne, the princess must protect her family and save the kingdom.

Hellboy comes to England, where he must defeat Nimue, Merlin's consort and the Blood Queen. But their battle will bring about the end of the world, a fate he desperately tries to turn away.