Did Gibbs and Bishop survive?
On NCIS Season 16 Episode 17, the pair went on a mission conduct a murder investigation.
However, things got gnarly when it emerged that the nuclear submarine they were on went radio silent.
The team had to track the submarine's last known location with the aim of saving their friends before it was too late.
There was a stunning twist in the tale when Gibbs and Bishop did some digging of their own while on board.
What did they find out?
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.