Having decided that everyone could do with a holiday, Graham accidentally teleports himself, the Doctor Yasmin and Ryan to a luxury resort for a spot of rest and relaxation. However, they discover the place where they are having a break is hiding a number of deadly secrets. What are the ferocious monsters that are attacking Tranquility Spa?
Did You Know?
Much of the dialogue here has been replaced in post-production, especially in scenes around the transport vehicle - where lines are "spoken" by actors who are facing away from the camera, moving rapidly across the shot, or just not visible at all. See more
The Doctor "explains" how plants are the opposite to humans, they breathe in carbon dioxide and breathe out oxygen, which is not true. Plants have the same type of cells as animals - they obtain carbohydrates from the environment, "burn" them with inhaled oxygen, and then exhale the resultant carbon dioxide.
The difference is that animals obtain their carbohydrates from plants or other animals, while plants obtain their carbohydrates by photosynthesizing it with the energy of sunlight - so most of their excess oxygen is used up at night, as more stored carbohydrates are "burnt". See more
You can't build an ionic membrane from scratch.
If I had crayons and half a can of Spam, I could build YOU from scratch.