FIVE-0 ENLISTS THE HELP OF AN OLD FRIEND WHEN THE BOSS OF A MAJOR CRIME FAMILY IS MURDERED, TRIGGERING REVENGE KILLINGS ACROSS THE ISLAND, ON "HAWAII FIVE-0," FRIDAY, OCT. 6

Chris Vance Returns as British Spy Harry Langford

"Kau pahi, ko'u kua. Kau pu, ko'u po'o." - Five-0 enlists the help of an old friend when the boss of a major crime family is murdered, triggering revenge killings across the island. Also, MacGarrett and Danny begin sorting out particulars in their new restaurant venture, on HAWAII FIVE-0, Friday, Oct. 6 (9:00-10:00 PM, ET/PT) on the CBS Television Network.

("Kau pahi, ko'u kua. Kau pu, ko'u po'o." is Hawaiian for "Your Knife, My Back. My Gun, Your Head.")

REGULAR CAST:

Alex O'Loughlin (Steve McGarrett)
Scott Caan (Danny "Danno" Williams)
Chi McBride (Lou Grover)
Jorge Garcia (Jerry Ortega)
Meaghan Rath (Tani Rey)
Taylor Wily (Kamekona)

RECURRING CAST:

Chris Vance (Harry Langford)

GUEST CAST:

Steven Brand (John Walcott)
Derek Mio (Derek Okada)
Young Han Kel'iholokai (Tet)
Eric H. Mita (Jimmy Okada)
Vance Fonoimoana (Big Samoan Guy)
Mane (Local Woman)
Peter Jae (Loto Manui)
Kevin Yamada (Agent Kenji)
Daryl Emanuel Frederick (Agent Patrick)
Jessica Heller (Veronique)
Joe Seo (Viktor)
Eric De Mendonca (Lieutenant)

WRITTEN BY: David Wolkove & Matt Wheeler

DIRECTED BY: Eagle Egilsson