Doctor Who and the Carnival of Monsters

The Doctor and Jo land on a cargo ship crossing the Indian Ocean in the year 1926. Or so they think. Far away on a planet called Inter Minor, a traveling showman is setting up his live peepshow, watched by an eager audience of space officials. On board ship, a giant hand suddenly appears, grasps the TARDIS, and withdraws. Without warning, a prehistoric monster rises from the sea to attack. What is happening? Where are they? Only the Doctor realizes, with horror, that they might be trapped.