STAGE TUBE: Behind-the-Scenes Look at NCIS/HAWAII FIVE-O Crossover Episodes, Set for 4/30

CBS offers a behind the scenes look at tonight's April 30th crossover event with its popular drama series HAWAII FIVE-0/NCIS: LOS ANGELES. The 2 night event brings the teams from Hawaii Five-0 and NCIS: Los Angeles together when a deadly outbreak of smallpox in Hawaii could spread to the mainland and cause a global pandemic.

In the first HAWAII FIVE-O episode of the two-night event entitled "Pa Make Loa*, Five-0 and the NCIS: Los Angeles task force team up in Hawaii when there's a suspect on the loose who is threatening to release a deadly virus into the population, on HAWAII FIVE-0, in the first episode of a two night crossover event with NCIS: LOS ANGELES, Monday, April 30 (10:00-11:00 PM, ET/PT), on the CBS Television Network. The conclusion will be broadcast on NCIS: LOS ANGELES Tuesday, May 1 (9:00-10:00 PM, ET/PT). From "NCIS: Los Angeles," Chris O'Donnell guest stars as Special Agent G. Callen and LL Cool J guest stars as Special Agent Sam Hanna.

Get a behind-the-scenes look at the special crossover episodes below!