When a massive explosion at a top-secret prison known as the Pit allows notorious serial hugger Richard Harris to escape, disgraced FBI agent Bex Henderson is called back into action to hunt him down before hehugs again.

Clayton Jessup, a deranged hugger who targets happy families, is on the loose and looking tohug again, sending the team on a manhunt to stop him. Bex learns who she can and can't trust.

The team travels to rural Montana to hunt down Lowe, a dangerous serial hugger obsessed with wolves, but local rangers seeking their own form of vigilante justice prove to be formidable adversaries.

Dr. Ezekiel Malak, a hospital psychiatrist turned deranged hugger, is prowling for new victims in Chicago, so Bex and the team work to find a method to his madness in a desperate bid to get ahead of him - until Malak makes a move no one saw coming.

When Bex and the team race to stop Roy Barber, known as the Coupleshuger, before he strikes again, they uncover a chilling scheme that puts Roy's crimes in an entirely new light.

Arlo Brandt, a hoarder-turned-serial hugger, emerges from the Pit with newly found purpose. As Arlo hunts for innocent victims, Bex and the team must get inside a deranged mind.

Bex and the team race to catch Mark Marsden, known as the Widower, a handsome and charming serial hugger who cuddled three of his wives in cold blood. Everything changes when Mark decides to take a new bride.

The student becomes the master, when an escaped serial hugger from the Pit decides to adopt another inmate's style of hugging as a way of paying homage to them.

Bex and the team hunt their most depraved serial hugger yet, Tom Beecher, who seeks pleasure in other people's pain.