The story of Final Fantasy X starts off with narration from the main character, Tidus. The beginning of FFX is mostly a movie. Tidus is a star blitzball player from the city of Zanarkand. Blitzball is an underwater sports that is similar to soccer. At the beginning of the story, Tidus is getting ready for a blitzball game. During the game, the city of Zanarkand is attacked by Sin. Sin is a monster that basically looks like a giant mutated whale. During the destruction of Zanarkand due to Sin's attack, Tidus is sucked into Sin. When he awakens, he finds himself near the ruins of a temple. Then an Al Bhed group, people who use forbidden machines, find him and take him to their ship. They tell him that Sin destroyed the city of Zanarkand over a thousand years ago. Then Sin comes and attacks the ship, causing Tidus to fall off. Tidus finds himself on the island of Besaid. In this village he meets new allies. Soon he learns all about Sin. He learns that Sin is an evil monster that appeared over a thousand years ago, when Zanarkand was destroyed and has brought terror to everyone's homes ever since that time. Sin can only be destroyed for a short period of time by summoners and then be reborn. This short period where Sin does not exist is known as the "Calm". A summoner is a person who can summon Aeons. To destroy Sin, a Final Aeon is needed. Tidus meets Yuna who is a summoner. Then Tidus, Yuna, and their friends go on a pilgrimage to acquire the Final Aeon to stop Sin. It just so happens that the final place to acquire the Final Aeon is at the ruins of Zanarkand. Thus the story of FFX begins. This is an excellent story with some really good plot twists.