Grimm enters the world of boxing after a brutal homicide takes place at a local gym. Nick is still without his powers, but a cop nonetheless, as he gets a case to investigate a murder. Meanwhile, now that Agent Chavez (Elizabeth Rodriguez) knows that Nick isn’t the grimm, she moves on to Trubel, following her every move. Also, Sgt. Wu still believes that something is going on that Nick and Hank aren’t telling him.
Monroe and Rosalee continue to search for a way to help get Nick his powers back when they get some unexpected help from Renard’s mother Elizabeth (Louise Lombard), who also happens to be a Hexenbiest.
Here is the official synopsis from NBC:
A LOCAL BOXING GYM COMES UNDER FIRE AFTER A BRUTAL HOMICIDE — LISA GAY HAMILTON, ELIZABETH RODRIGUEZ AND JACQUELINE TOBONI GUEST STAR — After Nick (David Giuntoli) has a bizarre, unsettling vision, he and Hank (Russell Hornsby) find themselves on a case that takes them into the world of boxing. Trubel (guest star Jacqueline Toboni) finds herself under the watchful eye of Agent Chavez (guest star Elizabeth Rodriguez) before jumping into the ring to help with Nick’s investigation. Meanwhile, Monroe (Silas Weir Mitchell) and Rosalee (Bree Turner) get some unexpected help in figuring out a way to restore Nick’s Grimm abilities. Elsewhere, Adalind (Claire Coffee) encounters a mysterious visitor in her dungeon cell. Bitsie Tulloch, Sasha Roiz and Reggie Lee also star.
Grimm airs Fridays at 9 p.m. on NBC.