Against mechas and strange races , together they sweep the vast planet to reach their goal .
It is based on a far futuristic planet where four mercenaries try to find the ultimate weapon which can either save humanity or destroy it .
Against mechas and strange races , together mercenaries sweep the vast planet to reach mercenaries ' goal .
It is based on a far futuristic planet where four mercenaries try to find the ultimate weapon which can either save humanity or destroy it .