After three years of study and training, Marie is now officially a member of the UN Special Forces. But she’s barely had time to celebrate her graduation when an extraordinary event forces her to leave for her first mission: an alien ship of unknown origin has just arrived in orbit of Earth. As no contact can be established with its crew, Marie and her team are sent to board the vessel and investigate …

A first attempt to enter the world-ship and make contact with the Humans inside has failed after the exploration team was contaminated with deadly nanorobots. Only Marie, with her Mantris-improved body, was able to fight them off, and so she and Kim, who is also immune, make the decision to give it another try … before the authorities of Earth destroy the massive vessel, the robotic menace within … and its mysterious Human passengers.