Gibbs and McGee head to Alaska while the team works at home to uncover the conspiracy behind the serial killer.

When Agent Parker is framed for murder, the team puts their jobs and lives on the line to buy time and uncover the truth.

Special Agent Alden Parker is still on the run with his ex-wife Vivian, so the team investigates who from his past might have a personal vendetta against him in hopes of clearing Parker's name.

The crossover continues on NCIS: Hawai'i S02E01 Prisoners' Dilemma (II).

After receiving intelligence on deadly threats to multiple locations that could lead to a catastrophic war, NCIS is called in to try to neutralize the danger.