After years of fighting against the forces of evil, Buffy Summers finds herself succumbing to the burden of bearing the Slayer mantle. To help his Slayer, Rupert Giles is willing to risk a return to chaos magic, and with Willow's help, they attempt a spell to remove the trauma from Buffy's psyche. The effects backfire though, and leave Buffy unable to remember her past, or her purpose! With Sunnydale under attack, a new Slayer must rise to protect it, while Buffy's friends race against the clock to restore her true self.