The Slayer or "Chosen One" is a young girl with super-human strength, agility and stamina. It is her destiny to fight evil. When one Slayer is killed, a new girl is "chosen" to become the new Slayer. The new slayer has all of the power of the last Slayer as soon as she is chosen. The new Slayer also begins to have dreams that tell her of her future and Slayers from the past.