Anya's violent and deadly act of vengeance leaves everyone stunned. Buffy must put aside her feelings and take action before more people die.

Buffy talks through her troubles with an old high school classmate who has recently become a vampire. Cassie, the late student Buffy tried to help, appears to Willow with a posthumous message from Tara. Dawn experiences a terrifying haunting. And Andrew and Jonathan return to Sunnydale High on a mission.

Buffy and the gang capture and interrogate Spike and Andrew.

Robin Wood seeks revenge on Spike for killing his mother nearly 30 years ago, whilst everyone else tries to find out how The First has control over him.

Faith returns to Sunnydale just as a new villain, Caleb, arrives and sends Buffy a message in the form of a badly beaten Potential. Buffy leads the rest of the girls to Caleb and The First's lair, with devastating consequences.