'Deep Down' Story Code '4ADH01' by Steven S. DeKnight

With Angel trapped on the ocean floor and Cordelia stuck on a mystical plane, Fred and Gunn are frustrated at the lack of clues regarding their friends' whereabouts, especially after the only eyewitness to Angel's disappearance is murdered. After Angel is rescued by the most unlikely person, the shocking reasons behind the mysterious disappearances become clear.

David Boreanaz (Angel), Charisma Carpenter (Cordelia Chase), Alexis Denisof (Wesley Wyndam-Price), J. August Richards (Charles Gunn), Amy Acker (Winifred ‘Fred’ Burkle), Vincent Kartheiser (Connor), Andy Hallett (Host [Lorne]), John Rubenstein (Linwood), Laurel Holloman (Justine), Stephanie Romanov (Lilah Morgan), Daniel Dae Kim (Gavin Park), Noel Guglielmi (Driver Vamp), Rod Tate (Bruiser), Ingrid Sonray (Marissa)
Directed by Terrence O'Hara

TX (US): 6th October 2002

Notes:
*Featuring Angel, Cordelia, Wesley, Gunn, Fred, the Host and Connor