Watch NCIS: Los Angeles Online: Season 9 Episode 20

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Who was behind a failed rocket launch?

That was revealed on NCIS: Los Angeles Season 9 Episode 20 as Callen, Sam and Nell ventured into the Angeles Forest to search for the parts of it. 

Interrogation Woes - NCIS: Los Angeles Season 9 Episode 20

However, the mission took a dangerous turn when it emerged that there was a top-secret government device. 

Meanwhile, Hetty tried to help Keane acclimate to life in the states, but did her plan emerge as a success? 

Use the video above to watch NCIS: Los Angeles online right here via TV Fanatic. 

Get caught up with all the latest developments right now. 

Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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NCIS: Los Angeles Season 9 Episode 20 Quotes

[Eric] is a genius, but, boy, is he high-maintenance.

Mosley [to Hidoko]

Kensi: Was [Eric] foaming at the mouth?
Deeks: I'm having heart palpitations just watching him.