The thirteenth season of the American police procedural drama NCIS premiered on September 22, 2015, in the same time slot as in the previous seasons, Tuesdays at 8 pm. [1]

The Secretary of Defense turns to NCIS to help a sailor dying from leukemia locate a bone marrow transplant after two of his siblings are killed in the line of duty. Meanwhile, Bishop returns home to …

Vance returns to field duty -- with Gibbs as his partner -- when a murder investigation has a connection to a former NCIS agent incarcerated for stealing evidence. During an investigation, Abby is trapped …

"Justice In Action"- In Season 13 of the hit series, "NCIS", the missions turn personal when a hostage situation traps one of their own, new evidence calls the unit's conclusions into question and a threat …

Season 13 guide for NCIS TV series - see the episodes list with schedule and episode summary. Track NCIS season 13 episodes.

NCIS, FBI and MI6 continue an international manhunt for an escaped British spy who is targeting current and former agents, on the 13th season finale.

From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and Marine Corps personnel, regardless of rank or position.