Forecast

When the bombs are dropped on Europe, Brad Sutcliffe and his crew of four are 132,000 feet above the continent carrying out weather experiments on board FABLE-1, the world's largest helium balloon.

Stranded in the stratosphere with their oxygen running out and the world on fire beneath them, the crew makes the terrifying decision to abandon their balloon at the edge of space and return to what they can only speculate is the aftereffect of a nuclear exchange.

Having survived the bombs and the death-defying parachute jump, they now face the gravity of surviving the aftermath, eventually finding refuge in the White Room, where they face their biggest test – surviving each other.

From the moment they set foot back on land, they face the most gruelling, most challenging moment of their lives, when the terror and complexity of survival test the human spirit and the strength of individuals comes to the fore.