On suspension and unable to work, DCI Domenic Jejeune finds his attention snared by an unexplained death at an Antarctic research base. Meanwhile, DS Danny Maik investigates a string of arson attacks in Norfolk. When a corpse is discovered in a bird hide, Danny's investigation escalates. It appears the body links the two enquiries, but the men are unable to share information. As they attempt to unravel a twisted web of leads involving Antarctic researchers, uncompromising climate scientists and billionaire philanthropists, Jejeune is forced to decide how much he is willing to sacrifice in the pursuit of truth.