In the future corporations are allowed to go to war for new acquisitions. They have resulted in carrying their companies and employees in huge spaceships. The spaceship in this story belongs to the Kronis Corporation and it is under attack by intruders that are killing employees fast asleep inside hyper-space capsules. There are some defense bots that have not been destroyed and you can use them to fight back against the company intruders. You will control a bot that moves on tracts like a tank does and fire at enemies with the plasma turret that is on top of the bot.