A plane crash in Philadelphia takes out the city's main power grid making it difficult for Megan and the rest of the team to conduct the necessary autopsies. While investigating the plane crash, Tommy and Riley are involved in a serious car accident.moreless
Megan and Tommy must determine who killed a schizophrenic teenage girl at a mental institution. To make things interesting, a patient claims that the murderer really meant to kill her, and they are being stymied by the ward director.moreless
A woman's savage murder leads Megan and Tommy to a neighbor inflicted with rabies who bites Tommy and is diagnosed with rabies. Kate calls in the new health commissioner, Dr. Charles Stafford, to help Megan when a second case of rabies is discovered sans bite marks.moreless
Sabrina is visited by the Ghost of Arbor Day Past after having a disagreement with the Chances regarding their celebration of the holiday.
The team needs to quickly figure out how to treat the virus when more and more people are becoming ill and dying.
When a city-wide outbreak of a mysterious and lethal virus occurs, even Megan and her team are at risk. In order to determine who and what caused this outbreak, CDC Officer Charlie Stafford takes over the investigation.moreless
Cookie develops a crush on a coyote, and considers leaving the pound.