Mark investigates when a teenage girl is murdered after threatening to reveal her affair with her older lover, a newly appointed state Supreme Court Justice.

Steve and Ron lead the chase for the stolen nuclear material.

A madman charges into a Lamaze class with a bomb, claiming that a fertility doctor was cheating him. Everything is complicated further when said doctor turns up dead.

When a rash of deaths at a high school revolve around one 'helpful' young girl, Dr. Sloan risks his own life to uncover the murderer.

Dr. Travis gets involved in the treacherous and deadly trade of catering when he oversees the annual charity banquet.

When a best-selling mystery author comes down with writer's block, she commits a murder herself in the hopes of stimulating her creative juices. The delusional author has help from her fictional heroine, Danielle Slade.

Amanda enlists Jesse's computer-nerd friends to find a killer, after she accidentally surfs across an on-line murder. Meanwhile, Jesse's girlfriend, Susan, comes down with a case of food poisoning after dining at Barbecue Bob's.

Jesse saves a woman, Chloe, in a traffic accident that claims a jealous lover forced her off the road. Jesse looks out for his patient when her ex-boyfriend threatens her. Jesse rushes to Chloe's aid when her life is threatened by her boyfriend, and inadvertently kills him. Jesse finds himself the victim of Chloe's 'fatal attraction' as she pursues him voraciously. It gradually becomes clear that Chloe was the aggressor in her previous relationship.