Detective Donovan Boyd gives Dov, Andy and Traci a secret undercover training exercise, but the mission is jeopardised when they find a woman who has overdosed on drugs.
The NCIS team continues to search for Callen as they realise they're being tricked by multiple deepfakes; Kensi and Deeks hear exciting news regarding the adoption.
The NCIS team must quickly find Callen after he falls for Katya's trap using Sam's deepfake to coordinate a weapons deal.
Following a teenager’s inexplicable collapse, Bo (Anna Silk), Dyson (Kris Hold-Ried) and Kenzi (Ksenia Solo) go undercover at a high school and discover a Fae drug ring.