A famous equestrienne who ran a vocational program for prison inmates is murdered, and the prime suspect is a convicted felon and former drug addict. Meanwhile, Megan's ex-husband is upset to learn that she took Lacey to a crime scene, but Megan becomes equally peeved when she finds out that Lacey is being dragged along on her father's vacation with his new girlfriend.

A dead pharmaceutical rep pulled from a river is discovered to have no blood in her body, so the team must locate the original crime scene to help determine the cause of death.