A man, presumed dead, who walks off Ethan's examination table leads the team to a shocking discovery.

A champion equestrian is killed and potential drug use is suspected, but when Megan's daughter, who also rides, overhears details of the case, she leads the team to a clue and possibly the murderer.

A murdered young woman's body turns up in place of a medical school cadaver during class, leaving Megan to rely on the aid of the star student to help solve the case.

When a recent lottery winner is found brutally murdered, everyone becomes a suspect.

When an undercover cop is found executed at a truck stop, the search for the killer hits close to home.

When the owner of a family owned and operated Italian restaurant turns up dead in the freezer, Dr. Hunt and the team take a closer look into family matters. Meanwhile, Peter must face his own haunted past.

After a car accident reveals a dead body in the trunk, the team is led to another body, leaving them with two cases to solve, while Megan is reconnected with an old acquaintance and Kate's job is threatened.

When the parents of a perfect family are murdered and discovered by their son, the team soon realizes that things are not as it seems. Meanwhile Curtis struggles with his new position, and Megan's new love life heats up.

Megan and the team are faced with a city-wide outbreak of a lethal virus.

As more people die, the team must figure out how to treat the virus.