A demon raised from infancy after being conjured by and rescued from the Nazis, grows up to become a defender against the forces of darkness.

The mythical world starts a rebellion against humanity in order to rule the Earth, so Hellboy (Ron Perlman) and his team must save the world from the rebellious creatures.

Hellboy is a supernatural being who is the son of a fallen angel. He came to our world in 1944 as a result of a mystical ritual. The Occultists of the Third Reich had long tried to gain an advantage in the war, hoping to attract the ideal soldier to the ranks of the fascist army. Hellboy was exactly the one they needed, but they never managed to make their plans a reality. The demon from hell fell into the hands of Americans and began to serve them, protecting the world from mysterious threats. This time he is sent to England to meet face to face with Merlin's wife. Just a battle with the Blood Queen will lead to the end of the world, which the monster tried to avoid all his life.