Highlights from the Fifth Episode of Season 4 of Hawaii Five-0

Catherine's surveillance job takes a deadly turn. Adam considers making the ultimate sacrifice to save Kono.

Officers in Uniform on

Officers in Uniform on "Kupu’eu” Season 4 Episode 5

As Catherine’s seemingly harmless surveillance job takes a deadly turn, Adam considers making the ultimate sacrifice to save Kono, on HAWAII FIVE-0, Friday, Oct. 25 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo Best Possible Screen Grab/ ©2013 CBS Broadcasting Inc. All Rights Reserved
Retiring Officer in

Retiring Officer in "Kupu’eu” Season 4 Episode 5

While a conspiracy theorist helps Five-0 when a missing artifact is the key to solving a double murder, Catherine (Michelle Borth, holding plaque) retires from the military, on HAWAII FIVE-0, Friday, Oct. 25 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo U.S. Navy photo by Mass Communication Specialist 2nd Class Nardel Gervacio/Released
Retiring in

Retiring in "Kupu’eu” Season 4 Episode 5

In scenes shot on the USS Missouri, Catherine (Michelle Borth, left, with Alex O’Loughlin, right) retires from the military, on HAWAII FIVE-0, Friday, Oct. 25 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo U.S. Navy photo by Mass Communication Specialist 2nd Class Nardel Gervacio/Released
Ceremony in

Ceremony in "Kupu’eu” Season 4 Episode 5

While a conspiracy theorist helps Five-0 when a missing artifact is the key to solving a double murder, Catherine (Michelle Borth, holding plaque) retires from the military, on HAWAII FIVE-0, Friday, Oct. 25 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Also pictured (L-R) Capt. Jeff James, commander, Joint Base Pearl Harbor-Hickam (JBPHH) Photo U.S. Navy photo by Mass Communication Specialist 2nd Class Nardel Gervacio/Released
Behind the scenes in

Behind the scenes in "Kupu’eu” Season 4 Episode 5

In scenes shot on the USS Missouri, Catherine (Michelle Borth, left, with Alex O’Loughlin, right) retires from the military, on HAWAII FIVE-0, Friday, Oct. 25 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo U.S. Navy photo by Mass Communication Specialist 2nd Class Nardel Gervacio/Released
Celebration Ceremony in

Celebration Ceremony in "Kupu’eu” Season 4 Episode 5

While a conspiracy theorist helps Five-0 when a missing artifact is the key to solving a double murder, Catherine (Michelle Borth, holding plaque) retires from the military, on HAWAII FIVE-0, Friday, Oct. 25 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo U.S. Navy photo by Mass Communication Specialist 2nd Class Nardel Gervacio/Released