Megan is surprised to discover she has a connection to a woman found dead in a hotel room; Megan starts taking an interest in what is going on around her.

A father is found stabbed to death in his home in the Philadelphia suburbs; Kate takes a consulting role in a case with Megan's ex-husband.

Many suspects emerge after a rich tycoon's new, young wife is shot during a deer hunt; Kate and Megan's relationship takes a turn for the worse.

When a popular 17-year-old high school student is found dead after a rave, the team must decipher various unknown drugs in his system and multiple bruises to figure out the cause of death. Meanwhile, Meghan is finally starting to date again after the divorce, but her ex-husband springs some shocking news on her and her daughter, causing tension at home.

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.

Megan investigates the death of a bride on her wedding day; Ethan has a crush on the new girl, but she is interested in someone else.

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