Star Trek: 25 Greatest Next Generation Episodes
17. Schisms
In what is undoubtedly one of THE creepiest science fiction episodes of all time, the Enterprise passes through a nebula on a scientific mission when Riker and other members of the crew are sucked into another dimension through holes in subspace where creepy crustacean doctors perform Nazi-like medical experiments on them, including turning blood to polymer, severing and reattaching limbs and all that good stuff.
Sounds cheesy? Well, it is incredibly cheesy, but then again sometimes the cheesiest sci-fi is the best sci-fi. I mean, those alien doctors are enough to give anybody of any age nightmares for a week!