After his latest discoveries, Isaak wonders if he is not pursuing a killer of cosmonauts. Determined to save the crew of the ISS, Anna begins to dream that she will go into space. At the cosmodrome, Emil Durkhov and the other engineers are looking for a way to communicate with the space station.

• Stéphane Pannetier
• Thierry Poiraud
• Julien Vanlerenberghe

• Oleg Levin
• Céline Sallette
• Daniyar Alshinov