Katherine Cunningham

Darden's widow publicly blames Severide for her husband's death and Casey makes a decision about his future with Hallie.

Severide is made an enticing offer by a woman he saved from a car crash and the crew bid farewell to a colleague after a blaze at a garage.

Pete rethinks his career after learning that not every call has a happy ending, and Shay decides if she has a future with a married woman.

To carry out a sailor's dying wish, Gibbs and the NCIS team re-investigate a murder case that was originally ruled an accidental death.