During their panic, Jimmy tested chemicals while Kasie desperately brainstormed out loud as she attempted to come up with an idea for a cure.
Thankfully, Dr Carol Wilson (Meredith Eaton) made a huge comeback to NCIS as the CDC immunologist to save the day.
Dr Carol came to the rescue just in time as she was able to find an antidote which saved both their lives.
Fans will have to tune into season 20 to see who Kasie will eventually be romantically linked with
NCIS is available on CBS in the US and available on Disney Plus in the UK.
