Thailand, July 2018. Twelve boys and their football coach vanish into Tham Luang caves.

Rick Stanton, a retired Midlands firefighter, races to save them. The boys have been missing for days. Each hour, their chance of escape shrinks. Rick must swim, crawl and squeeze through treacherously tight submerged tunnels hunting for them.

But that is not the impossible part. Because if by some miracle they're alive then somehow Rick must bring the boys back out again . . .

He doesn't know it yet but all his life he's been training for this very moment . . .