The remarkable crew of the Reclamation Service Amphibious Vehicle Sheerah face the greatest challenge of their careers on the ruined shores of a poisoned world. After a major event unearths precious resources, the Reclamation Service dispatches a special mission to investigate and bring home the riches. However, dangers lurk in the oceans, the shallows, and amongst the rusted wreckage. Captain Hal Lum, Counsellor Ise Koolen, and the rest of the crew of the Sheerah are soon fighting for their lives against impossible circumstances. With the course of history in the balance, far from help, the crew must find a way to survive and tell the world about the Ironclad Exile.