该片主角为一位居住在小镇里的母亲，在政府封锁小镇的情况下，这位母亲不顾一切地与时间赛跑，来拯救自己的孩子。
Naomi Watts
Amy Carr
Colton Gobbo
Noah Carr
Sierra Maltby
Emily
Michelle Johnston
Heather (voice)
Woodrow Schrieber
Detective Paulson (voice)
David Reale
CJ (voice)
Jason Clarke
Greg Minor (voice)
Debra Wilson
Dedra Wilkinson (voice)
Christopher Marren
Peter
Joshua Bowman
Emergency Police
Todd Collins
News Reporter
Zehra Fazal
Juan Pope
Wall Guy (voice)
Ellen Dubin
Sergeant Brandt (voice)
