Four astronauts have to stay 1000 days in a space station around Earth in order to prove that a trip to Europa, one of Jupiters moon, is possible. The experience goes well until something happens on earth.

为了证明去木星的卫星之一欧罗巴旅行是可能的，四名宇航员必须在环绕地球的空间站停留1000天。这种经历一直持续到地球上发生了什么事情。