During building work in the city of Baden-Baden in 2015, an evil troll who was transformed into stone in the 15th century, is accidentally brought back to life. To prevent being unmasked, the Troll slips into the body of Vanessa and enslaves her. Vanessa Troll then goes looking for Charlie, the virgin boyfriend of Vanessa's daughter, as The Troll needs his blood to evoke a portal to a magical prison. Will the Troll's plans find success?

The Dunn family struggles to regain their balance and composure after the middle and only male child has been severely injured in Iraq.

An elite team of FBI profilers analyze the country's most twisted criminal minds, anticipating their next moves before they strike again. The Behavioral Analysis Unit's most experienced agent is David Rossi, a founding member of the BAU who returns to help the team solve new cases.