Watch NCIS: Hawai'i Online: Season 2 Episode 18

Did Tennant's survival skills help everyone?

On NCIS: Hawai'i Season 2 Episode 18, the NCIS agent found herself in a deadly situation when a helicopter she was on crashed.

She also had to interrogate a suspect during the aftermath, paving the way for some big shockers.

Elsewhere, Ernie had a breakthrough that allowed him to make some big changes to the software in the building.

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