When a charismatic billionaire starts an NGO purpose built to tackle extreme humanitarian crises in a unique and contemporary way, he calls on a misfit collection of talented aid workers to staff it.

From the philosophical, damaged, wise and cynically strategic, to the brilliantly energetic, callow and green, they are a collection of men and women of different ages, races and creeds coming together to assist with the worlds most dangerous and extreme problems: to work deep field.

They are united by a collective ambition to tackle huge problems and an inability to live normal lives – and divided by almost everything in their respective natures. Over five seasons, we live and breathe the personal and professional lives of the people who abandon home to help – and inevitably find themselves in dire need of both.