While Riley's health begins to deteriorate, Spike and Harmony force a surgeon to remove the behavior modification chip embedded in Spike's brain.

As Joyce's sickness makes her begin doing odd things, a demon emerges from a meteorite and begins killing the mentally ill.

When Tara falls victim to Glory's incredible power, Willow embraces dark magic and launches a counterattack.

While trying to find a way to make Buffy forget about her afterlife experience, Willow inadvertently casts a spell that erases everyone's memories.

Anya and Xander's wedding is thrown into turmoil when a man claiming to be Xander's future self turns up at the ceremony.

Buffy begins a new job as school counsellor at Sunnydale High. On her first day she encounters a troubled young girl who is convinced she is about to die.

Buffy takes the Potentials to a demon bar and then to Spike's crypt, in order to teach them the art of slaying. When Willow casts a spell to seek out the next Potential, the spell leads them to believe that Dawn may be a future slayer.

Faith and the Potentials search underground for a weapon, whilst Buffy confronts Caleb at the vineyard.