《时间守望》是一款全新的文字冒险游戏。玩家扮演时空管理局的成员，需要前往不同的时间点完成任务，揭开尘封的谜团。而每一次冒险，都有时间限制，一旦时间用完，就必须重新开始。但是每一次开始，都会发现不同的新内容，令你渐渐接近历史的真相。

管理局遭遇大危机！资料突然被神秘人破坏，整个机构处于瘫痪之中。而造成这次瘫痪的元凶，竟然是南极中的神秘外星生物……

Prepare yourself for a horrifying journey to the frozen wastes of Antarctica! In Expedition Endurance, the fourth expansion (and fifth scenario) for T.I.M.E Stories, a temporal anomaly of the worst sort has opened up in 1914 in Antarctica. This is the year that the crew of the Endurance attempted to cross the continent and failed, and your efforts to unravel the mysteries of this temporal anomaly will carry you into a realm where temperatures drop below -40 and, as Bob warns you, there may be supernatural forces at work.