Martin's boys get into a fight, which threatens to derail the whole expedition to climb Gran Paradiso. Will Lisa manage to calm everyone down?

The new recruits of the Milky Way security force arrive for training. Pierrette is worried about Fat Nose's threatening behavior. Meanwhile, the UFO enters the ship's observation space. This calls for immediate action!

Nico's friends are watching an important soccer game when he comes into the café and tells them about his troubles with Selma.

Martin chooses three boys to go on the mountaineering expedition, and Rocky, at least, is immediately enthusiastic about the idea. However, Martin withholds one important detail from them at first...

The representatives of the confederation, chaired by the President, are now to vote on how to deal with the unknown flying object. There is no consensus at all!

Nico discovers that it was Pepe who told Selma's father about the two of them. Although it wasn't Pepe's fault, Nico is still mad at his brother. How could he be so clueless?!

An unknown flying object appears on the radar. Pierre, Pierrette, and Maestro discuss where it might come from and whether it might be hostile.

Lisa asks a friend from her university days for help, but he is not enthusiastic about her idea to organize an expedition up to the Gran Paradiso.

Pierrot and Dickie have completed their training as spaceship pilots and are now looking forward to new challenges. Soon, the two arrive for their first mission, which is to identify an unknown flying object.

Pepe is jogging through the park and talking to Selma's father on the phone when he suddenly happens to catch sight of her with Nico. Amused by the coincidence, he mentions it to the father in the phone call. What could be the harm in that?

Lisa is reprimanded by her superior because of the promise she made to Mark.

It's Selma's birthday, and she meets up with Nico, who surprises her with a gift. But would her parents approve?

Having requested a second opinion on his condition, Mark has received the results of the assessment in the mail. When he is finally alone, he opens the envelope with trembling fingers...

Lisa initiates contact with Mark, but he proves to be his usual prickly self and then ends up taking things a little too far.

Lisa, a physiotherapist, starts her new job in an institution for people with learning disabilities. She meets Mark, who is actually just being kept there temporarily and who initially reacts to her in a dismissive, almost aggressive way.