... which is rather hard to do since this is already a series about a medical examiner.
A man (Frank Aletter) needs to go to his car to retrieve some papers he needs in the middle of a monsoon like storm. He has to clear some branches, and underneath them and up against his car is a body. He calls the police and the body is sent to the medical examiner. Quincy determines that the man died from typhoid about ten days earlier and he quarantines the couple that found the body as a precaution.
But then another call from the neighborhood - The rain has died down and the neighborhood where the body was found is strewn with other bodies, skeletons, and coffins. Apparently there is a cemetery uphill from the neighborhood, and a mudslide caused by the heavy rain caused the bodies and coffins to become dislodged from their resting places.
In the process of cataloging and examining the bodies at the medical examiner's office, Quincy finds two more bodies, also dead about ten days like the first, also dead of typhoid, but these two bodies were still inside simple wood coffins. The cemetery caretaker is as helpful as she can be, but Quincy's investigation to determine if there were more bodies not immediately found, and in particular if there were more bodies that might expose people to typhoid, is shut down by powerful people who somehow have an interest in Quincy not doing any further "digging", if you'll pardon the expression. Complications ensue.
This episode is particularly interesting if you consider it was made four years before Poltergeist and seven years before Return of the Living Dead, so don't think this episode copied from them. If anything, they copied their idea from this show. I will also say that having somebody as recognizable as Frank Aletter in the opening scene did put me off balance a bit, as I was very surprised that he had such a small part in the show.