S01:E01 - A World in Your Ear
Flying through the mist and looking for shelter, Rudi and Trudi discover a small cave and decide to go in. Surprisingly, the cave starts to move and Rudi and Trudi find themselves heading down a long tunnel. What they don't know is that they have fallen inside a giant's brain. Huge filing cabinets line the walls of the brain, which are full of memories, hopes and all manner of other thoughts. Suddenly they hear a ghostly voice explaining all. The "voices" are locked up behind a barred metal door. Rudi all too hastily frees them. They turn out to be angry bad tempered thoughts, now running wild inside the giant's head.