The PRIMAVERA holds course for Lemtow 642, a star 36 lightyears away from Earth. On board, 3000 women and men are in deep hibernation. Doctor Daniel Ahrens, leader of the medical team, is enyoying his computer-generated chryostasis-life as a young French aristocrat of the late 18th century.  The love affair with a married lady catapults Ambroise Vicomte de Garlancourt in an epic duel for life and death. The overture for a reckless escape begins.  In London, Ambroise is studying medicine to become a physician, resulting in an inner reformation. Enthusiastically, he complies with the initial rite of a freemacon lodge. Searching for his missing parents, he gets caught in the bloody midst of the French Revolution. Finally, he escapes to America. As a regiment physician he accompanies a campaign against riotous natives. After 146 years in flight, an unpredictable incident happens. The artificial intelligence of the spaceship decides to wake up the entire crew.