S20, EP17 "Stranger in a Strange Land"
NCIS works to solve the murder of a Marine private who appears to have been killed for helping an Afghan refugee; Jimmy navigates the pressure of parenting his teenage daughter, who is eager to go out on an unchaperoned group date.
S20, EP16 "Butterfly Effect"
The NCIS team jumps into motion to investigate who is responsible for a potential bioterror attack at a strip mall parking garage; Knight's father deals with a health scare while in Japan.
S20, EP15 "Unusual Suspects"
NCIS investigates the death of a ride-share driver who was found after a car accident; Parker's dad, who is temporarily living with him, assists the team in their investigation.
S20, EP14 "Old Wounds"
Parker grapples with his emotions when a con man from his past turns up as a prime suspect in the murder of a navy officer.
S20, EP13 "Evil Eye"
In preparation for a role, a world-renowned actress shadows the NCIS team as they investigate a decapitation case.
S20, EP12 "Big Rig"
When an old pal of Torres' comes to him -- disheveled and bloodied -- for guidance amidst an undercover FBI operation and then disappears, NCIS helps track him down; McGee prepares to be a contestant on a popular game show.
S20, EP11 "Bridges"
Parker discovers he's a victim of identity theft while investigating the unusual murder of a Navy ensign; Knight and Jimmy face hurdles in their relationship as their connection heightens.
S20, EP10 "Too Many Cooks"
NCIS agents from Washington, D.C., Los Angeles and Hawaii, in D.C. to attend the retirement party of a beloved Federal Law Enforcement Training Center professor, find themselves investigating his shocking suicide.
S20, EP9 "Higher Education"
NCIS investigates the death of a college student who was killed while running across the street and had connections to McGee's wife.
S20, EP8 "Turkey Trot"
After an unknown shooter causes chaos at an annual Thanksgiving 5K, time is of the essence for the NCIS team to find the culprit; Kasie joins Knight for Thanksgiving lunch at Knight's sister's house.
S20, EP6 "The Good Fighter"
When an NCIS agent turns up dead and Kasie goes unaccounted for, the team must work quickly to find the killer.
S20, EP5 "Guardian"
Agent Parker steps up to protect director Vance after a terrifying home invasion; the team detects advancements in Jessica and Jimmy's blossoming romance.
S20, EP4 "Leave No Trace"
Agent Knight's past resurfaces when her ex-boyfriend, a National Parks Service agent, teams up with NCIS to investigate a campsite murder.
S20, EP3 "Unearth"
When a dead body is found at an ancient burial site that is thought to be cursed, the team tries to determine the motive and the symbolism behind the crime; as Torres continues therapy with Dr. Grace, he discovers that their lives are in danger.
S20, EP2 "Daddy Issues"
McGee's personal life and professional life intersect when a dad from his children's school is linked to a break-in at a government storage bunker.