The young Yutaro boarded the cargo ship "Monpapa" with his longing for Australia.
During the voyage, the cargo ship suddenly exploded and sank. Yutaro, his dog Pochi and reporter Latour escaped by chance, but ended up drifting at sea.
After going through twists and turns, they landed on a mysterious island, only to find that it might be a dinosaur island.
On the island, they encountered various strange events. First, they discovered some unexplainable phenomena, and then met the expedition members who had escaped from the "Sea Tiger".
Everyone went on an adventure on the island, accidentally discovered a dinosaur cave, and also found the missing Latour.
But during the rescue process, the count accidentally fell into the sea, and then the greed of Morello and others triggered a conflict with the dinosaurs.
Can Tamaro and the others escape the threat of dinosaurs? What other secrets does this mysterious island hide?
