Complex sentence: The game is set three years after the original game's end and it focuses on Vincent Valentine's battle against Deepground, an organization that plans to awaken the creature Omega which is able to destroy the planet.
Split into simpler sentences: The game is set three years after the original game's end and it focuses on one of the game's playable characters, Vincent Valentine. In the story, Vincent is targeted by Deepground, a mysterious organization that plans to awaken the creature Omega which is able to destroy the planet.