The team is called in to find a connection between a series of random poisoning cases before more people die. (R)

When Hondo's cousin goes AWOL from his Marine base during basic training, Hondo, Deacon and Daniel Sr. take a road trip to get the kid in line. (R)

An actor's foray into experimental drug therapy leads to his murder. Shaw reconnects with a mentor who may hold the key to identifying a suspect. (R)

Mickey seeks an interview with the confessed serial killer to understand his motives. (R)

The team is called in to find a connection between a series of random poisoning cases before more people die. (R)

When Upton and Ruzek answer an emergency call to an abandoned house, their investigation leads them down a dark path. Upton feels the pressure of the secret she and Voight are sharing. (R)

NCIS OSP is tasked with assisting NCIS' cold case homicide unit with a case from 2003 and a missing Navy petty officer. Kilbride and his son, Alex, work to rebuild their relationship. (R)

A young lawyer with a secret past is found dead. Price and Baxter debate the pros and cons of prison as a punishment vs. alternative justice options. (R)

Goodwin recruits Charles to evaluate her ex-husband's memory. Archer treats one of Sean's peers from the rehab center. Asher treats a woman from a rural clinic whose miscarriage was improperly treated (R)

The team races against time to capture dangerous escaped prisoners, Meanwhile, tensions between Hicks and Bennett take an unexpected turn.? (R)

The team is called in to find a connection between a series of random poisoning cases before more people die. (R)

Mickey seeks an interview with the confessed serial killer to understand his motives. (R)