Part 2/8:
The story begins with American astronauts Kira and Christian embarking on their journey to the ISS via the Soyuz rocket. Upon docking, Christian explains the Russian crew's communication signals, notably the three knocks that signify safety. Inside the station, they meet the rest of the crew: Commanding Officer Gordon, along with Russian brothers Nikolai and Alexe. Gordon has spent 50 days on the station, and his closeness with Veronica, a fellow crew member, highlights the personal connections that form in the isolation of space.