: In Los Angeles, Kensi Blye and Marty Deeks track Grant’s final movements. They discover that a group of extremists kidnapped Grant to use her as a "human bomb" to spread the virus at a VA hospital .
This episode is well-regarded by fans for its focus on character growth, particularly for "Densi" (Deeks and Kensi).
: Special Agents G. Callen and Sam Hanna are already on the ship when it is placed under strict quarantine. They work alongside Agent Afloat Ehsan Navid (a returning character from Season 5) to identify potential spies or infected crew members.
: While Hetty Lange is mentioned as being on a mission in Washington, D.C., she only appears in credit during this episode. Cast and Production "NCIS: Los Angeles" Yellow Jack (TV Episode 2019) - IMDb
I will join you in prayer for a spiritual awakening among God's people and the advancement of the gospel.