As the war between the vampires and the Lycans rages on, Selene, a former member of the Death Dealers (an elite vampire special forces unit that hunts werewolves), and Michael, the werewolf hybrid, work together in an effort to unlock the secrets of their respective bloodlines. Selene, a vampire warrior, along with Michael, who is half-werewolf, searches for answers in the history of their races to learn about the reason behind their war. Underworld: Evolution is a 2006 American action horror film directed by Len Wiseman from a screenplay by Danny McBride, based on a story by Wiseman and McBride.