Erich Bludau

Biographical movie about Julius Robert Mayer (1814-1878), a surgeon and town doctor in Heilbronn, who studied heat for many years and was the first to correctly formulate the basic principles of the theory of mechanical heat and the principle of conservation of energy. Competing Prussian scientists laugh at him, and his life is full of misunderstandings and persecution. The film tells of his fate and his long and futile struggle for recognition of the results of his scientific work.

Shipwrecked on an uninhabited island, Robinson Crusoe fills his time in either building a shelter for himself, or by reminiscing about the years he spent at sea and the adventures that led him to where he is. The months roll by and the hardships become easier, especially with his herd of wild goats, the ship's dog and a friendly parrot to keep him company. But one day he comes across a strange footprint - friend or foe?