Year 2129: The Bator System.

A sentient computer network known as the Data Grid has begun to wage war on the Federation. In a last ditch effort to save humanity, the experimental fighter Scavenger 4 has been launched. It's mission: to track down and destroy the Data Grid's heavily armored control center, Scarab X. Grab the controls and pilot the super-sonic Scavenger 4 on a desperate sortie. Blast your way through the Data Grid's defensive network blazing a trail through cities, between canyons, over glaciers and on to destroy the Scarab X.