Trial by Fire

"Trial by Fire" is the 13th episode of season 4 of the supernatural drama television series Grimm and the 79th episode overall, which premiered on February 13, 2015, on the cable network NBC. The episode was written by Sean Calder and was directed by Norberto Barba. Plot Two young employees stay late at Harrison's Outfitters, when Damien Barso (Gideon Emery) uses a key to enter the building. He generates fire from his body and sets fire to the building. The two employees are trapped in the office and when they discover the fire, it is too late to escape. Nick, Hank and Wu are called in to investigate the deaths of the young folk. They meet John Harrison (John Murray), the owner of the store, and his son Andy (Hank Harris), whom John is grooming to take over the business, which has been in the family for three generations.