The Underworld film project was announced, setting the stage for the development of the vampire-werewolf action film.
Principal photography for Underworld began, starting the actual production of the film.
Underworld, directed by Len Wiseman, was officially released to the public.
Underworld was released on DVD and home video formats, allowing for wider audience accessibility.
Centuries ago, the war between the Vampire and Lycan clans erupts, establishing a bitter and violent conflict.
Victor rises to power as one of the Vampire Elders, solidifying the vampire hierarchy.
Sonja is born into the vampire clan, destined to become a key figure in the vampire-lycan conflict.
Sonja secretly falls in love with Lucian, a Lycan warrior, defying vampire laws.
Sonja sacrifices herself to save Lucian from execution, triggering consequences in vampire society.
Lucian becomes the first lycan with self-awareness and leads a rebellion against the vampires.
Selene is trained and joins the Death Dealers, vampire warriors dedicated to hunting Lycans.
Selene discovers Michael Corvin, a human linked to vampire and lycan clans, sparking interest.
Michael is bitten by both vampire and lycan, transforming him into the first immortal hybrid.
Selene confronts Lucian in an attempt to end the lycan threat and protect vampires.
