We're introduced to Mako as a person that spends most of his time in the water with his companion Afa, his dog. He is also known for being good with his hands and crafting useful weapons.
Mako then learns by his grandfather that his father was killed along with 2 other people, by Tupa (the main villain) and that killing Tupa will come with a reward, so Mako decides to get his vengance, and that reward.
Mako then goes to retrieve food on an island not to far from where he was, but then finds himself visiting one part of the ocean that reminds him of Tupa, so he does it again...
Mako challenges Tupa once more and ends up battling the beast himself, Afa then jumps into the water and Mako tries to get her back on in panic of her drowning or getting eaten by Tupa.
In the end of the battle, Mako is the victor,and then goes home with his vengence of his father
The story then ends with our heroes coming back with more then just vengence and others safety, he also comes home to 30 acres of land and a sailboat.