A new episode of Grimm, with Sasha Roiz, airs tonight at 9 pm. Here is the synopsis:
As Portland's homeless youth start to go missing, Nick uncovers a deadly black market supplying the Grimm world with human organs for all types of elixirs. As the investigation heightens, Nick and Juliette befriend a pair of homeless siblings, Hanson (guest star Daryl Sabara, "Spy Kids") and Gracie (guest star Hannah Marks, "Necessary Roughness"), whose friends have gone missing.Valerie Cruz from Alphas and The Dresden Files also guest stars.
Starting next week, NBC will be airing Grimm reruns on Thursdays at 10 until March, and The Firm is moving to Saturdays.


