Written by Eric Powell, with artwork provided by Kyle Hotz, the series teams Billy the Kid with members of a travelling freak show in a quest to retrieve a powerful object from the castle of Dr. Victor Frankenstein.

In exchange for giving him shelter, Bonney will accompany Sproule and a small group of his performers to Europe where they intend to steal a powerful supernatural object with an evil history known as the Golem's Heart from the castle of Dr. Victor Frankenstein.

Billy the Kid and his allies arrive in the small village surrounding the castle of Victor Frankenstein and rent out some rooms at the local inn.

At dinner Frankenstein uncovers a platter in the center of the table, revealing the severed head of Hector Delgado and orders Billy the Kid and his allies chained to a nearby wall.

After being freed and taking some time to recover, Billy the Kid returns to the castle which is now under attack from a tank like machine operated by Leonard Abradale.

In the chaos Jeffrey gains control of the Golem's Heart and orders Frankenstein's creations to attack and kill their creator.