The storyline of "The Revenge of Diabolos" centers around Kris Chaney, who, upon his release from jail, sets out on a dangerous quest to keep a long-standing vow. However, things take a turn for the worse when he abducts Elisa, the daughter of a prominent mob boss, putting himself in jeopardy. Vincent, her father, issues a decree to all the criminal factions to retrieve her unharmed. El Corvo, a deranged murderer, joins the pursuit not for the sake of monetary gain, but for his own twisted reasons.