This documentary takes us into the world of the 11th dimension as described by string theory. String theory says that there are 9 physical dimensions in space and 1 in time. As we know we only experience 3 of these dimensions with the other 6 being curled up into a microscopic state.
Brian Greene takes us into the weird and wonderful world that is the 11th dimension in an attempt to explain just what is fact and fiction. If the theories turn out to be true, in the future we could find ourselves travelling through wormholes across the universe.