season 1:buffy goes to sunnydale and learns that she is a vampire slayer por her watcher rupert giles.xander a student hears the truth and por an accident willow does the same!buffy meets a strange guy named ángel and finally she understands that he is a vampire with a soul and she is in amor with him.a strong vampire called the master is underground and tries to go back and lead the earth!in the last episode he manages to bite buffy and get free.only for a moment buffy is dead while at school the hellmouth has opened!xander and ángel take buffy and she is alive and she kills master!the season ends with the scoobies go to a pary and master dead at the library!!!