One hijacked bus. Ten frightened children. A deadly race against the clock . . .

New driver Jessa is desperate for her shift to run smoothly to avoid exposing her job-application lies. Twelve-year-old passenger Sage just wants to get home, exhausted from watching over her little sister, Bonnie. But disaster strikes when their bus is hijacked in broad daylight. For the innocent souls onboard, the nightmare is only just beginning . . .

Trapped inside a shipping container buried 20 feet underground, the captives are promised they'll be freed once a ransom is paid to the hijackers. But Jessa and Sage aren't sure they'll last that long. It’s dark and cramped – and, as every minute passes, it's becoming harder to breathe.

With time – and air – running out, can they team up to outsmart their captors? Or are they doomed to an unthinkable fate?