Bloodthirsty vengeance is measured out in buckets, not spoonfuls for this hard-hitting vampire movie sequel. The story picks up right where the first Underworld left off, in the midst of a war between Lycans (werewolves) and vampires, with the gorgeous death-dealer Selene (Kate Beckinsale), on the run with her vamp-wolf hybrid lover, Michael (Scott Speedman).
Being the cause of Viktor's death, Selene can only hope to plea to the last remaining elder, Marcus. However, Marcus has already awakened and has become a more powerful creature than before. Now his only remaining goal is to awaken his Lycan brother William from his eternal imprisonment. With time running out, Selene and Michael must piece together the final clues to unlock the secrets of their bloodlines and stop Marcus before it's too late...