Social isolation affects millions of people, even Mars-bound astronauts. A savvy NASA psychologist is tasked with protecting these daring explorers.

For the first time since the legendary Apollo missions over 50 years ago, humans are once again setting out for the Moon on April 1, 2026. NASA’s Artemis II mission marks the beginning of a new era in space exploration, and Germany will play a key role. This documentary follows the four astronauts during their preparations and offers exclusive insights into the Orion spacecraft. German astronauts Alexander Gerst and Matthias Maurer, along with other space experts, explain how the mission will proceed and why it is being undertaken. It's a journey that blends science, adventure, and the fundamental question: Why do people risk their lives to reach other celestial bodies and distant worlds?