Fleet Command orders you to man the guns of the Antaris, protect the fleet and destroy the Katuri. Make it to the last mission and take on the dreaded Katuri Juggernaught Carrier.

You're in possession of the last defense against space invaders, and it's up to you to shoot the attacking invaders to protect your home world.

The Katuri have smashed through the frontier and Apocalypse Outpost is the sole remaining outpost standing in their way.