S5. Ep10. Soul Purpose

Angel learns that a girl with a tortured past is a vampire slayer; Andrew arrives with surprising information about Buffy; Spike thinks he can prove he is destined to be the vampire champion.

A mystery man approaches Spike to claim responsibility for making him corporeal and offers to guide him in his quest to overthrow Angel.

Harmony is desperate to find out who framed her for the murder of a demon rights activist who was mediating an important truce between warring tribes on Angel's behalf.

The gang learns that the existence of two living vampire heroes with souls has created chaos in the world; the history of Angel and Spike's relationship with Drusilla is played out in flashbacks. 

Cyborg assassins attack the firm looking for a magical device that will give them control over Angel, and Wesley's estranged father arrives to evaluate his son for possible acceptance into the council.

Angel must track down a retired wrestler to help him defeat an ancient Aztec warrior who emerges every 50 years to devour the heart of a hero.

Angel and the gang investigate after Lorne's Halloween party becomes horrifying with guests behaving strangely and out of character.

Spectral forces threaten to send Spike to hell, loosening his weak grip on reality and causing encounters with ghostly apparitions.

Angel tries to shield a female werewolf from evil restaurateurs who want to serve her up on a platter as a delicacy.

Spike materializes as a ghost in Angel's office through the magic of an amulet; Angel tries to stop one of his clients from using human bodies as vessels for demon spirits.