The entire fourth season of the popular 'Buffy the Vampire Slayer' spin-off. In 'Deep Down', as Fred and Gunn search for Angel (David Boreanaz), Wesley continues his affair with Lilah. In 'Ground State', in his quest to steal an artefact that may help him find Cordelia, Angel finds himself competing with a human thief whose body is electrically charged. In 'The House Always Wins', Angel and his friends discover that Lorne is being held prisoner in a corrupt Las Vegas casino. In 'Slouching Toward Bethlehem', after Cordelia returns, she doesn't remember her friends and Lorne senses a major evil brewing. In 'Supersymmetry', Fred discovers her old physics professor is the one who exiled her to Pylea. In 'Spin the Bottle', Lorne's spell to restore Cordelia's memory backfires and convinces everyone that they are high school students who have been gathered to hunt Angel. In 'Apocalypse, Nowish', as plagues of various pests descend on Los Angeles, the beast Cordelia saw in her vision returns. In 'Habeas Corpses', Connor gets locked inside Wolfram and Hart with the Big Bad doomsday beast. In 'Long Day's Journey', after a group of totems linked to the ancient sun god Ra are killed by the Big Bad beast, Angel and his friends realise he's plotting to turn off the sun. In 'Awakening', Angel agrees to try to bring Angelus back. In 'Soulless', Angelus succeeds in setting Angel's friends against each other. In 'Calvary', after learning the doomsday beast may be working for something bigger and badder than itself, Angel's friends cast a spell to return his soul to Angelus' body. In 'Salvage', Lorne casts a sanctuary spell on the hotel and Wesley brings in the slayer Faith to help get Angelus back. In 'Release', as Faith and Angel continue their battle, the voice of the Beast's Master invades Angel's mind. In 'Orpheus', Faith and Angelus lie drugged and possibly dying and Willow comes to help the others in the quest to restore Angel's soul. In 'Players', Angel tries to remember what Lilah's book said about the Master and Gunn helps Gwen with some corporate espionage. In 'Inside Out', as Cordelia prepares to give birth, Angel and his friends finally learn that she - or an evil presence controlling her - is the Beast's master. In 'Shiny Happy People', while everyone admires the beautiful woman Cordelia bore, Fred sees another side of her. In 'The Magic Bullet', Fred finally tricks Angel into seeing Jasmine's true nature. In 'Sacrifice', Angel and his friends battle a nasty monster who provides some clues that might help in their larger battle against Jasmine. In 'Peace Out', Angel returns from the monsters' dimension and finally defuses Jasmine's all-encompassing powers. Finally, in 'Home', Lilah returns from the dead to offer Angel and his friends full ownership of Wolfram and Hart.