The team travels to New Jersey where several people have been poisoned - one fatally, with LSD 10 times more potent than the street version.
After a mysterious hit squad takes out a special agent on assignment, the NCIS team jumps into action before the next target is set.
Nate and Brenda find comfort; Ruth has a surprising self-assessment; Federico becomes suspicious of Vanessa; a former client sues.
Dr. Arik Soong (Brent Spiner) sacks a scientific outpost to create an army of superhuman Augments and threatens to release the deadly pathogens stored on site if anyone interferes.