A diver's sudden death shocks his crew.
On NCIS's "Decompressed" (Season 13, Episode 14), a deep sea diver is murdered on the job, making his crew the prime suspects. In order to preserve the body and keep the suspected co-workers alive, the NCIS team must complete an unorthodox investigation from outside the tank as the crew is locked inside a high-tech decompression chamber for four days. Meanwhile, the NCIS team struggles to finalize their Valentine's Day plans.