In each generation, a new slayer is born. After one slayer dies, another is takes her place. Each slayer has an assigned watcher. The watcher is the guardian who trains and informs the slayer. While one slayer is fighting the forces of darkness, there are others in training all over the world, waiting to see if they will someday become the slayer.
In our generation, the slayer is Buffy Summers. She first found out she was a slayer when her first watcher, Merrick found her and showed her the powers she possesed. At first she resisted but finally she gave in. She gave up her life with her air head friends who soon turned on her as she started to realise what was going on in the world.
In the last episode of the season, Buffy left Sunnydale. Nobody knows where. Kendra, the other slayer is dead and now we have to wonder who will be there to protect the world. Will Buffy come back?