In Grimm Season 4 Episode 16, Nick and Hank investigate after a cyclist dies after coming into contact with a strange toxin, which was in fact delivered by the touch of a very unusual frog-like Wesen who apparently has no control over her deadly ability. Juliette, meanwhile, still can't accept that what has happened to her is permanent, and she takes it out on Renard and later Nick. Renard, meanwhile, is still contending with his mysterious phantom bleeding, and doesn't seem to have a solution or even a reason behind it. A new Royal, Prince Kenneth, arrives in Portland after King Frederick sent Viktor back to Vienna. Kenneth is not at all impressed with Adalind and immediately sets to work on locating the missing baby Diana. The danger only grows for Renard as he struggles to prevent the Royals from finding his daughter. How will he handle the arrival of Prince Kenneth? Will Renard be forced to join with the Royals? Will Juliette ever accept her new Hexenbiest powers? And will Nick and Hank be able to find a solution for a Wesen's tragically fatal touch? Find out the answers when you watch Grimm Season 4 Episode 16 online.