Anna Grace Barlow

Grace learns more about Chanel when they collaborate on researching KKT's past; Dean Munsch becomes a target; a figure from the past makes a shocking return.

When the lead singer of a college a cappella group is found dead in the school rat lab, Booth and Aubrey question suspects and try to figure out who the murderer is. While on the case, Aubrey is reminded of his own experience as a student.

The discovery of two dead bodies in a forest leads the NCIS team into the wild world of modern-day treasure hunting; Gibbs and Fornell get deeper into their search for the opioid kingpin.

Gibbs and Fornell's crusade to find the head of the drug ring responsible for Fornell's daughter Emily's overdose comes to a climax; Gibbs and Vance finally let the team in on a case that has dangerous implications.