Charlotte Wilkins and John Evans, agents of Britain's MI5, find themselves caught up in a vortex of mysterious events. While carrying out their missions, they realize that a web of connections lies behind a series of incidents, and that the clues point to a massive crisis capable of threatening the survival of all humanity. As elite MI5 agents, they cannot shirk their duty. They are about to embark on a perilous journey and take on the great mission of saving humanity from disaster.