Alouette et le sous-marin

The cadets build a glass dome garden on Mars as a surprise for the headmaster. But the garden isn't flourishing like it should. They need to find out what went wrong.

Alouette believes that the Moon is disappearing. She decides to investigate and takes photos of the Moon every night. She discovers the lunar cycle.

Vautour wants Falcon to carry out a secret mission. He must place a rocket on the asteroid so that Vautour can alter its trajectory.

Robyn analyzes Condor's Globe-Ball game. She suggests ways for him to improve, but he just does as he pleases.

When Raven, a new student at the academy, disappears, it's up to the cadets to find him using the constellations.

Falcon and Cornelius think they need better fuel to win the race. Falcon manages to win by believing in himself and giving it his all.

Condor collides with the gas station and causes it to move. It is no longer balanced between the Moon and Earth. They have to work against gravity.

When Cornelius discovers a new comet, he decides to collect a sample with the harpoon he borrowed without permission. But things don't turn out as he planned.

Condor suggests that his friends go to Saturn's moon. They realize that it's not at all like Earth, and make comparisons between the two planets.

The principal asks the cadets to learn more about the Earth by studying an inactive volcano. Falcon and Raven go to observe the volcano, while Robyn and Condor analyze the information.

Alouette wants to become a cosmopilot, but she has to pass several tests before she can earn the title. Condor, Robyn and Faucon train her.

Robyn is determined to solve a riddle and comes up with a hypothesis.

Vautour fires Coach Pigeon and replaces him with the RoboCoach XL-5 to modernize cadet training.

The cadets decide to find the source of the power failure on the lunar base.