NCIS: Los Angeles (2009)

S5E24 Deep Trouble (1)

The NCIS: Los Angeles team, along with the DEA, discovers the cartel's scheme to secretly ship billions in cocaine from Colombia to the U.S. via a submarine. Callen and Sam are tasked with swiftly finding the missing sub. At the same time, Hetty is summoned to Washington following the fallout from a contentious operation in Afghanistan.