Deep in a vast tropical rain forest, Kit and Lara escape the nullness of modern life doing charitable work in a jungle village. With them is their tiny baby, Helen, who flourishes under the anxious care of her father.

Their life of idyllic isolation is shattered by the arrival of an outsider with frightening news: close at hand, across the border, violence is looming. Hidden in a tiny memory card, Kit unwittingly holds evidence of the world-shattering event that is unfolding, the desperate power-play of a flailing Superpower.

Separated from Lara, with war erupting around them, Helen and Kit are forced to flee through the forest with a band of local children, pursued by a ruthless and determined army. Caught between the struggle of rival powers, Kit must keep his baby daughter alive while protecting the secret that his pursuers will kill to get their hands on.

In The Green Heart is the gripping story of the human cost of individual resistance to the forces of state power. It is a political thriller in the tradition of Joseph Conrad and Graham Greene and a heartbreaking tale of fatherly love.