In the first adventure based on the novels about the world's most famous kid detectives, The Three Investigators follow an invitation to South Africa where they are sucked into a journey that has them risking their lives! This investigation finds them helping a young girl escape from dangerous Cape Town while they chase an evil treasure hunter through deserts and across mountaintops, and eventually leads them to a breathtaking showdown with a mysterious, horrific creature named "The Tokolosh." Uncovering the true secret of Skeleton Island will prove to be the most adventurous -- and dangerous -- case The Three Investigators have ever had!