Synopsis

From the aftermath of the Vietnam War, Callen, Sam, Kensi, and Deeks assemble with Hetty’s core team – Sterling Bridges, A.J. Chegwidden, and Charles Langston – for a perilous and clandestine rescue operation. Their objective: to liberate Hetty from her captors in Vietnam. Meanwhile, Mosley enlists Nell’s sister, Sydney Jones, a homeland security specialist, to join the team in Los Angeles. Her expertise is required to analyze evidence pertaining to Hetty's experiences during the conflict.