Humanity is constantly pushing its limits... In the field of space exploration, Mars is now the number one objective. Reaching the Red Planet presents immense challenges: which rockets will be capable of traveling such a distance? Can the body adapt to weightlessness for such a long time? Will the crew, in complete isolation, withstand such an ordeal, both physically and mentally? Around the world, the scientific community is trying to find solutions to send the first human to Mars. This documentary invites us to discover the behind-the-scenes story of the greatest expedition of all time.