NCIS (2003)

S1E6 High Seas

An NCIS agent formerly under Gibbs' command reaches out to the team for assistance in a troubling investigation. Sailors aboard an aircraft carrier are mysteriously succumbing to drug overdoses, despite having no backgrounds of substance abuse. The team must delve into the case to uncover the truth behind these unexpected fatalities and determine if there’s a hidden threat lurking within the ranks.