Both episodes aired as a part of Hawaii Five-0 Season 2 and also NCIS: Los Angeles Season 3 and are also available on the respective series's DVD. On April 30 and May 1, 2012, NCIS: Los Angeles had a crossover episode with fellow CBS drama series, Hawaii Five-0 in the episodes titled, Pa Make Loa (episode) and Touch of Death (episode) which centered around the Hawaii Five-0 Task and OSP teams working together to stop a potential outbreak of smallpox. The title was officially announced in a press release along with the scheduling of the series. The show's title was the subject of much speculation, as the so-called back-door pilot episodes did not reveal it with the titles hypothesized by fans were NCIS: OSP, OSP, NCIS: Los Angeles, and NCIS: LA. On September 22, 2009, the first ever NCIS: Los Angeles solo episode, ' Identity' premiered directly after NCIS. The series originally began as two backdoor pilot episodes, Legend Part 1 (episode) and Legend Part 2 (episode), both of which aired as a part of NCIS Season 6.
NCIS: Los Angeles is a spin-off from NCIS (series) and focus on the NCIS Office of Special Projects located in Los Angeles with the agents assigned to that area investigating cases concerning Naval or Marine personnel that occur in or around Los Angeles itself.
