A small island in Bora Bora is where a child named Mako lived. On this island, there was rumors of a shark named Tupa, who was known for causing trouble in the ocean at night.
Mako found out that Tupa had taken 3 victims one night, and one of them was his father.
Mako decides that he is going to kill Tupa to get revenge for his father.
Mako's mom makes him go out to another island to collect bananas. But, Mako ends up taking longer than expected to collect the items, leaving Mako to have to swim over the ocean at night, when Tupa is known for coming out.
While Mako and Afa are heading back to his home, Tupa approaches their boat, and Afa falls out. In a moment of shock, Mako kills Tupa and pulls Afa back into the boat.
Mako makes it back to his home with everyone praising him, and the prize money and land from the king.