Subtitle Series - TV Series review

Grimm Season 4 Episode 13 Trial by Fire A man get inside the store, he takes his cloth off and his hand start the fire. He make the electricity down, that man start to get fire and burn everything. But 2 employees are in store to make inventory they stuck inside. Nick and Hank go to see the shop, and found 2 bodies. They found something fishy about this fire, they question to the owner. They all upset about it. They think the probably they burn for insurance, but they checkout and found nothing make sense. Then he found out that one of bad guy Nick arrest, works on this case before. They go to visit him, he tell him about fire case. He tell them that he is so close to him. He said he needs to get out here to help him find. They take him to station, he said he need to get his case files. Nick and Wu this wesen in book, but it seems no way to stop him. The guy from bank goes to see the flame guy but he killed him with fire. Nick and them found out that he might be ignit...