In Grimm Season 4 Episode 3, Nick is all but dragged to the hospital to see what's wrong with him after his debilitating headache at the end of the last episode. Later he and Hank investigate a suspicious murder following a boxing match at a local gym. They quickly suspect that their victim was killed by a Wesen, but Nick is still unable to see Wesen thanks to Adalind. Their only choice is to call in Trubel to act once again as their seeing-eye-Grimm. Trubel, meanwhile, is told by Agent Chavez that there are certain parties who would be very interested in her skills as a Grimm, and is warned not to let anybody else know about their meeting. When you watch Grimm Season 4 Episode 3 online, you discover a surprising revelation about Nick's Grimm-less condition as Monroe, Rosalee, and Captain Renard's mother Elizabeth work together to come up with a cure. Nick and Hank uncover a conspiracy of abuse at the local boxing gym, all in the name of producing a star boxer and riding his coattails into the big leagues. Watch Grimm Season 4 Episode 3 online to find out what happens when they confront the man responsible.