It's not a coincidence the episode is called Deep Trouble. Callen and Sam are trapped inside a submarine!
Nell updates Sam and Callen with intel about the case.
Nell approaches Sam and Callen with information about the investigation.
Sam, Callen, Deeks and Kensi walk down the stairs in a line.
Callen looks inside the sub, while Sam covers him.
Sam and Callen are on location on the NCIS: LA season 5 finale.
Sam and Callen on the dock during the Season 5 finale, "Deep Trouble."
Sam and Callen find a submarine being used to transport drugs.

NCIS: Los Angeles Quotes

Kensi: Because once again you're trying to say something without actually saying it. And it's driving me nuts.
Deeks: I think you lost me.
Kensi: No. I don't think I did. I think you know exactly what I'm talking about.
Deeks: Do I?
Kensi: Damn it, Deeks, you asked me out on a date without actually asking me out on a date. Now, if this keeps going this way and we can't communicate, and we've been over this -- you never say what you mean, and if this is the way it's gonna be, then I don't know how we're ever gonna --
Deeks: I don't want to be here with you right now.
Kensi: What?
Deeks: I want to be at my place, right now ... with you.

My family.

Callen [in Russian]