At time archeological excavation in the valley Cydonia group from scientific base Mars 3 has found a cave into the depth of Mars. At attempt to explore it the scientists were exposed to attack of dangerous monsters. The only expert on explosive works was rescued from all group. Fortunately the air in the cave was suitable for breathing. From all weapons the man has only explosives. You must help him to find other exit from this cave and protect base from attacks of terrible monsters.