Catalina Denis

FBI child specialist Claire Bennigan investigates when an imaginary friend persuades children to play dangerous games; a haunting phenomenon comes to light.

Minx tries to talk Henry into playing one more game with Drill; Claire and Wes race to stop Sean from causing a deadly incident.

Sean, Claire, Wes and Lena look into the past of the man who first encountered Drill over three decades earlier -- before Drill murders him.

As John pursues his mysterious mission, Claire looks into his identity. Lena is upset that Wes has been discussing a case with Claire. Drill keeps playing a dangerous game with Harper, Minx and Henry.

A mysterious entity leads Sean and his hostage, Dr Maria Benavidez, to a secret location; as Claire and Wes continue to investigate Sean, his next target starts to become apparent.

Wes persuades the president to allow him to place all the children in a protected zone, in hope of weakening Drill; the team mourns a loss.