It's a rainy day and the weather threatens to flood the wombles' burrow. Meanwhile, Tobermary starts behaving strangely after receiving a bump on the head.
Bungo is convinced there is a Bigfoot Womble lurking around the Common and with the help of Tomsk and Stepney he sets out to capture the first photograph of the elusive creature.
To ease the fears of the young Wombles on a dark and stormy night, Great Uncle Bulgaria recounts a tale from his youth of an exciting adventure with Livingstone, the great Womble Explorer, on a journey around the world.