In 2141, the polar ice caps began melting, causing most of the land on Earth to sink. Cities sank to the bottom of the ocean and people fled to high ground. In 2205, the polar ice caps show no change in terms of reappearing. It seems humans have caused too much global warming.
You play as any other civilian in what was Colorado, the highest ground near your hometown. You must steal resources, get vehicles, and escape to one of the havens over the water where people seek refuge from the ever-growing water level.