Ancient Greece, Bronze Age - the era of gods, warriors and magic. The young shepherd Gilas is a foundling who does not know where he comes from. His sister disappeared, his faithful dog died, and now on the heels of him are killers, mysterious black warriors. Saving his life and trying to find his sister, Gilas embarks on a dangerous journey through the mountains and seas. His only companions are a rich girl named Pirra, who ran away from home but is completely unsuited to life in the real world, and a lonely dolphin who has lost his pack. To survive, Gilas must not only find the answer to the question of why his enemies are pursuing him, but also solve the riddle of a bronze dagger that accidentally came to him.