NCIS: Driven

A woman is found dead in a classified robotic vehicle she was working on developing. Although it initially looks like suicide, when Abby puts the vehicle through some tests, it nearly takes her life as well. They discover that someone rigged the vehicle to kill the passenger and make it appear to be suicide. They discover that the woman who was killed was not the intended target. Meanwhile, Tony visits the hospital to see his girlfriend and continues working on special projects for the Director. Ziva notices Tony getting calls from the hospital and begins worrying that he is sick.