Part 1 of the 1962 theatrical film. The Grant children know their shipwrecked father must still be alive. Didn't he send them a message in a bottle? They convince a sea captain to go on a search. From the Andes to Austrailia all around the globe they travel, dealing with earthquakes, fires, floods, and cannibal tribes just to find him, But when it turns out to be an act of Piracy they must really pull together, or they might not be able to make it through just one more Un-Natural disaster.