What starts as a pleasant class trip to a planet five light-years away becomes a nightmare survival trip to get back home. In the year 2063, interstellar space travel has become the norm. What sort of adventure awaits on the new frontier? The situation aboard the Astra intensifies as Zack reveals to Kanata that the ship's communication system has recently been sabotaged and it's likely one among them is the culprit! The crew members are overtaken with confusion and anger and begin questioning each other's motives. Suddenly, the side of the Astra explodes! The controls and gravity system shut down, and the Astra is set on a collision course with the planet Shummoor.