What happens before maco kills tupa in the story ghost of the lagoon?

Before Mako kills Tupa in "Ghost of the Lagoon," Mako, a young boy, witnesses Tupa, a giant shark, threatening his village and its fishermen. Driven by a mix of fear and a desire to protect his community, Mako decides to confront the shark. He prepares himself mentally and physically for the encounter, reflecting on the stories and beliefs surrounding Tupa, which heightens the tension leading to their confrontation. Ultimately, Mako's determination and bravery culminate in the dramatic moment of the shark's demise.