The Series lasted four series with each series containing thirteen episodes and followed Eric Swanson throughout four years of being a slayer. Series one covered Eric dealing with being a Slayer and trying to kill the Queen Vampire.
Series two went deeper into Eric and how he deals with his mum being killed and David his best friend getting injected with heroin.
Series three Eric has left school and his father decides to move away but buys Eric a one bedroom flat in-town and he starts working at the shop below it, he also has to get used to no being the only Slayer.
Series four and the final series Eric faced his biggest threat the Bringer a demon who caused every demon to attack Muir of Ord the whole time Eric was a Slayer.