40-year-old Amelia who is hit by a bus on her birthday. When she wakes up, she suddenly finds the year is 2002 and Amelia is 18 again - allowing her to right all the mistakes she made the first time round.But as she finds herself stuck in a "Groundhog Day" time loop - waking up every morning on her 18th birthday - she realizes there's something else going on that will need to b...。一个妈妈Sandra为了解决和自己丈夫的中年危机,决定和他的儿子打算突然去看他们在洛杉矶的丈夫/爸爸,给他一个惊喜。但是当车开到半路时,他们的车在在渺无人烟的地方发生了严重的车祸。先是因为玩智能手机,造成错误的操作,导致孩子被独自锁在当今非常先进自动化的防弹车子内。而Sandra必须与时间赛跑,从被沙漠的酷热包裹的汽车中救出自己的孩子,还要面对荒无人烟的沙漠,她必须同野狗和变化莫测沙漠斗争。最终母子2人的命运会是怎样呢?。