Year 2038: The mineral resources of this earth are emptied, in space that there are fights for its very last residue on satellites and other planets. This is the scenario lots of these mining robots are disappearing in their trip home and when all but one mineral moons have been lost by one of the mining corporations. They send inmates to defend the mining station, since no one wants the work. Included in this under cover agent Stone, that will clear those expensive robots' where abouts. In an atmosphere of fear, corruption and hatred he receives involving the fronts of distinct groups.