Highlights from the Twenty First Episode of Season 2 of Hawaii Five-0

NCIS: LOS ANGELES Special Agents G. Callen (Chris O’Donnell) and Sam Hanna (LL COOL J) team up with Danny (Scott Caan) in Hawaii to track down a suspect who is threatening to release a deadly virus into the population, on HAWAII FIVE-0. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Kamekona (Taylor Wily) serves up lunch when NCIS: LOS ANGELES Special Agents G. Callen (Chris O’Donnell) and Sam Hanna (LL COOL J) team up with Danny (Scott Caan) and Chin Ho (Daniel Dae Kim) in Hawaii to track down a suspect who is threatening to release a deadly virus into the population. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

NCIS : LOS ANGELES Special Agent Sam Hanna (LL COOL J) teams up with Danny (Scott Caan) in Hawaii to track down a suspect who is threatening to release a deadly virus into the population. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

We are combining two nights into one! Tune in TONIGHT starting at 9/8c for the rebroadcast of Hawaii Five-0's crossover event with NCIS: Los Angeles'. Then, NCIS:LA pairs up with the Five-0 team back in Los Angeles at 10/9c only CBS! Don't miss the two-hour event.

NCIS: LOS ANGELES Special Agents G. Callen (Chris O’Donnell) and Sam Hanna (LL COOL J) team up with Chin Ho (Daniel Dae Kim) in Hawaii to track down a suspect who is threatening to release a deadly virus into the population. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

CIS: LOS ANGELES’s Chris O’Donnell and LL COOL J, and Scott Caan and Daniel Dae Kim find some shade between takes in Hawaii while filming the first episode of a two night cross-over event. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

NCIS: LOS ANGELES Special Agents G. Callen (Chris O’Donnell) and Sam Hanna (LL COOL J) team up with Danny (Scott Caan) in Hawaii to track down a suspect who is threatening to release a deadly virus into the population. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Scott Caan, LL COOL J and Chris O’Donnell pose with members of the U.S. Air Force at Hickam Air Force Base on the island of Oahu while filming first episode of a two night cross-over event with NCIS: LOS ANGELES. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

NCIS: LOS ANGELES Special Agents G. Callen (Chris O’Donnell) and Sam Hanna (LL COOL J) team up with Danny (Scott Caan) in Hawaii to track down a suspect who is threatening to release a deadly virus into the population. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Kono (Grace Park) takes aim when Five-0 teams up with the NCIS: LOS ANGELES task force to track down a suspect who is threatening to release a deadly virus into the population. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

NCIS: LOS ANGELES’s LL COOL J hanging out with Scott Caan between takes in Hawaii while filming the first episode of a two night cross-over event. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

NCIS: LOS ANGELES’s LL COOL J hanging out with Scott Caan between takes in Hawaii while filming the first episode of a two night cross-over event. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

NCIS: LOS ANGELES’s LL COOL J hanging out with Scott Caan between takes in Hawaii while filming the first episode of a two night cross-over event. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

NCIS: LOS ANGELES Special Agent Sam Hanna (LL COOL J) teams up with Chin Ho (Daniel Dae Kim) and Danny (Scott Caan) in Hawaii to track down a suspect who is threatening to release a deadly virus into the population. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Kono (Grace Park) takes aim when Five-0 teams up with the NCIS: LOS ANGELES task force to track down a suspect who is threatening to release a deadly virus into the population. Photo: Norman Shapiro/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

The NCIS: Los Angeles and Hawaii Five-0 team unite! EPR for CBS

Chris O'Donnell, Grace Park and LL Cool J hang out behind the scenes on set! EPR for CBS

Behind the scenes on location of Hawaii Five-0. EPR for CBS

Exclusive Photos of the Hawaii Five-0 / NCIS: Los Angeles crossover event. Photo credit: EPR for CBS.

Exclusive Photos from Hawaii Five-0 / NCIS: Los Angeles crossover event. Photo credit: EPR for CBS.

A visit to Hawaii would not be complete without stopping by to visit Kalemkona! Photo credit: EPR for CBS.