Salyut 7, the Soviet space station, become orbiting Earth in unmanned regime. Suddenly it stops responding to alerts from the Ground Control. Fall of this station, the pleasure of soviet technology and space industry, might not best damage the photograph of the united states, but additionally carry upon tragedy, probable with lack of lifestyles. Astronauts should be sent to the station to locate what induced the breakdown and save you the catastrophe. However, nobody has ever docked an uncontrolled object in area. To this day that is the most technically complex mission within the history of the world of space navigation.