Hulk follows The Leader back in time to 1890 during the Victorian era and unites Frankenstein's Monster,N'Kantu, the Living Mummy, and Werewolf by Night's Grandfather as the Howling Commandos. They must thwart Leader and Dracula's plan to shroud the Earth with Leader's Gamma Furnace allowing vampires to prey night and day. In the present, the Agents of S.M.A.S.H.deal with the Vampire Lord Hulk who is ruling the vampire-dominated present after he had eliminated Dracula and Leader upon his vampire conversion.