Successful WWI pilot Luciano Serra has problems adjusting to an ordinary life in peace, so he leaves his family and becomes a pilot in America. In the 30s, his son in Italy wants also to become a pilot, and Luciano accepts an offer of a double dealing agent for a flight from Rio to Rome, but his plane crashes in the Atlantic. For the world Luciano Serra is missing, but he has entered the Italian army under a new name to fight in Ethiopia. The train in which his unit travels is attacked by Ethiop...