After a thirty-day mission onboard the Lunar Celestial 4 space station, the last crew of the old station is planning for a manual deorbit operation, however due to a the unexpected attack by the space debris, LC-4 remains in orbit and is unable to perform reentry. And this may result in the invasion of the international safe orbit law, the worst, it could end the entire space program.

To prevent LC-4 from becoming large space debris, the crew was ordered to return to LC-4 to repair the damaged systems. However, with limited fuel and oxygen supplies, the crew found their mission objectives doubled. In a negative way.