Jane crosses paths with a sinister cult leader while investigating the murder of a media mogul. Lisbon's life is endangered when she discovers a bomb in the victim's family home.
The team is left with two cases to solve, when a car accident leads to the discovery of two dead bodies. Megan reconnects with an old acquaintance and Kate's job is threatened.
A stampede at a music festival sees Chastain flooded with injured concertgoers; Bell causes trouble when the hospital's orthopaedic surgeon demands a better resident.