In the series "Once Upon a Time... the Discoverers," the Maestro lets off some steam. Some two thousand years ago, Heron invented the steam machine in Alexandria, but it took two millenia to perfect the invention and put it to practical use.

Cortés sets out to conquer Mexico with his four hundred men, sixteen horses, and seven cannons. He is joined later by native forces, the Totonac warriors.

Tension is building between the Aztecs and the Spaniards, not to mention within Cortés's own ranks. Despite this, the conquistador rallies his troops to conquer Mexico.

Cortés exchanges gifts with the Aztec Emperor, Montezuma. An excellent diplomatic move on both sides!

Cortés is negotiating with the friendly natives of Mexico with the help of his interpreter, who had been shipwrecked in a previous expedition and speaks Mayan. They are offered a young woman slave, Malintzin, who speaks Mayan and Aztec.

November 18, 1518... Cortés, the ambitious adventurer, sets out to discover and conquer the unknown empire of Mexico at daybreak before Velasquez has a chance to stop him.

The Aztecs are apprehensive about the arrival of the white men. It is a bad omen. Spanish conqueror Cortés is appointed Captain and will be heading toward new territories.

The Maestro recounts the events just before Ferdinand Magellan's untimely death in 1521, only a year after he discovered the passage that would allow him to circumnavigate the globe.

This new episode of "Il était une fois..." covers Cortés and the Aztecs. The story starts in 1519, when Ferdinand Magellan attempts to circumnavigate the earth. His ship makes it as far as Brazil.

James Bruce, the intrepid Scottish explorer, finally reaches his goal, the source of the Nile... or so he thought. After all his trouble, his exploits are not well received in England. But his legacy will live on.

After curing the queen mother's grandchildren of smallpox, James Bruce meets with the Ethiopian emperor, Tekle Haymanot, to tell him of his plans to discover the source of the Nile. But he soon finds out that he'll have to demonstrate his warrior skills if he wants to reach Lake Tana.

The explorers arrive at Gondar, the former imperial capital of Ethiopia, and marvel at the wonders of the palace. But a deadly illness is threatening the lives of the children of the royal family...

The explorers discover Abyssinia and the customs of its inhabitants, who have been cut off from the rest of the world for centuries. Will their visit bring a clash of cultures or a peaceful understanding? Find out in this episode.

As James Bruce and his crew arrive in Massawa in hopes of meeting the king, they are thwarted by the king's messenger, who was ordered not to let in any foreigners. But since the royal palace is in need of a doctor, and Bruce happens to be one, he may be forced to make an exception....

In the second segment of this episode of Les Explorateurs (The Explorers), James Bruce, our intrepid adventurer, encounters some pirates while trying to reach the source of the Nile.