Casey deals with the aftereffects of his sister’s divorce announcement. Dawson and Mills get used to their new roles at Station 51. Brett ponders whether to leave Chicago. The Molly’s…

A gruesome mishap at a Navy petty officer’s gender-reveal party leads NCIS to the case of a missing teacher that was popularized on a true crime podcast.

Bailey and Addison take a road trip to volunteer at a family planning center, but a patient’s ectopic pregnancy leads to complications. Elsewhere, the interns play detective about Lucas’ relationship…