A new case has similarities to a past case and a serial killer Megan helped send to prison.
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.
A case of mistaken identity mars a case when two young girls are in a tragic car accident. The wrong girl may have been pronounced dead and the actual cause of death is in question.
When a son discovers his murdered parents, the team soon realizes that this perfect family wasn't really perfect. Megan has a new love interest and Curtis is grappling with his new position.
A dead body found in the trunk of a car leads the team to another body. Megan meets up with an old friend and Kate feels her job is in jeopardy.
Dr. Hunt and the team examine a family restaurant business when the owner turns up dead in the freezer.
An undercover cop is discovered murdered at a truck stop.
A wedding turns into a crime scene after the bride falls to her death and everyone including her father is a suspect. Ethan is captivated by Dani but she's already found another love interest.
Everyone becomes a suspect when a lottery winner is viciously murdered.
A medical student is Megan's key to figuring out how the body of a murdered woman turned up in place of a cadaver at a medical school.
When a pharmaceutical rep is murdered, Megan and the team must find the original crime scene if they hope to find out the cause of death and why the body was drained of blood. A big hurdle to overcome is the number of suspects with access to lots of unknown drugs.moreless
The team must make sense of the unknown drugs in a 17-year old high school student after he's discovered dead following a rave. Just when Megan is starting to get on with life after divorce, Todd gives Megan and Lacey some staggering news.
When an expert horsewoman who ran a vocational program is murdered, the lead suspect is a woman in prison on drug charges. Todd doesn't react kindly when Megan takes Lacey to the crime scene, but the same can be said for Megan when Todd decides to take Lacey along on vacation with his new girlfriend.moreless
After Peter rescues a woman from a house fire, Megan discovers another person in the house who died. Peter takes the discovery personally since he had no idea anyone else was in the house. A veteran arson investigator challenges Megan at each step in her investigation. When Megan complains to Kate the response she gets only intensifies the tension between the two women.moreless
A new investigation is opened up after a man assumed to be dead disappears off Ethan's exam table. When another body is found, it's the DNA evidence that leads to an eye-opening discovery.
A child is missing after his nanny is the victim of a hit and run. Megan investigates the death alongside an FBI agent assigned to the case. A misstep in the interrogation of the prime suspect places Bud under critical inspection. But when Joan offers her help, Megan is suspicious it's just a PR stunt.moreless
Kate removes Megan from a murder investigation involving a deer hunting party when Megan openly accuses a wealthy and influential tycoon of shooting his young wife. Kate's actions make for an even chillier relationship between the two women. Megan is then assigned the case of a man who's been repeatedly beaten by a heavy object which only leads Megan back to the first murder.moreless
A middle-aged man is killed after his car goes out of control and over an embankment. Although the neighborhood seems idyllic, Megan finds that things are not as they seem and the list of suspects keeps changing.