Lucian and Pelops are the sons of the villainous Lord Tantalus, leader of a genetically unstable race of underground-dwellers. Pelops is their father's favourite, whereas Lucian is scorned, despite his loyalty, because of a birthmark and perceived genetic impurity.
Tantalus's attempts to menace the surface world are opposed by the masked hero known as Blackwulf, leader of the Underground Legion. When a mission led by Lucian clashes with Blackwulf‘s forces, it swiftly becomes clear that Blackwulf himself is actually a disguised Pelops.
While Lucian's still wrestling with that discovery, Tantalus also becomes aware of his son's secret rebellion - and responds by immediately killing Pelops.
Lucian decides that Pelops was right, and that their father is an evil force who has to be stopped - and so he too changes sides, taking up his brother's identity and allying with the Underground Legion as the new Blackwulf.
Blackwulf contains examples of:
- Archnemesis Dad: Lord Tantalus plays this role to both Pelops and Lucian.
- Death by Origin Story: Pelops is the first Blackwulf, but he's almost immediately killed, triggering Lucian's Heel–Face Turn, and then replaced by his brother.
- Offing the Offspring: Tantalus kills Pelops as soon as he realises that he's Blackwulf.
- The Unfavorite: Even before his rebellion, Lucian is barely treated as a relative. Tantalus directly orders Lucian to stop calling him "father".
- We Hardly Knew Ye: Pelops is dead by the end of the first issue, prompting his brother's rebellion. Despite Lucian assuming the Blackwulf role when Pelops dies, he's gone so quickly that it's not even a true Dying to Be Replaced scenario.
