Five years have passed since the return of Ulysses' crew to Earth. The memories and traumas of the first trip to Mars still haunt every survivor of the mission. But a vision of Jeanne shared by each of them will change everything. From now on, they are sure of it: she is alive. Somewhere. Under the aegis of William Meyer and in the greatest secrecy, a new mission for the Red Planet is launched to find it. But the billionaire did not reveal all his secrets to his crew. Mars no more.