On the episode, titled “Organ Grinder,” Nick (David Giuntoli) finds out the creature world has a unique use for human organs. The episode guest features Spy Kids star Daryl Sabara, and is a spin on the tale of Hansel and Gretel. But after you see the exclusive clip below, our guess is that you’d take your chances with the old lady and her oven.
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The episode airs this Friday at 9 p.m. ET, on NBC.