The further adventures of Willy Fog and his companions as they journey to the center of the Earth and then 20,000 leagues under the sea.

Willy Fog, the most famous British gentleman, faces the depths of the sea when many ships mysteriously disappear.

Through a series of unfortunate events, three mummies end up in present-day London and embark on a wacky and hilarious journey in search of an old ring belonging to the Royal Family, stolen by ambitious archaeologist Lord Carnaby.