A radio signal attracts a team of astronauts to a mysterious planet. Once there, they are warmly welcomed by an alien race, but are soon suspicious of what is really occurring on this strange land.
Otto Scheidel (Manfred Krug) has been captain of the Elbe steamer Jenissei for over twenty years, but his ship, the last of its kind, is going to be converted into a floating restaurant. Otto, whose his strong attachment to the ship has already cost him his relationship with his girlfriend Caramba (Renate Krößner), refuses to take another job and instead joins a railway construction brigade.
Hoffi is starting fresh after his release from prison. He travels with his brother to different construction sites in search of Urban, an acquaintance and role model he met during a brief hospital stay. Along the way, Hoffi meets Gila, who sees beyond his past in prison. Despite disapproval from her family, Gila decides to build a relationship and future with Hoffi, but Hoffi initially hesitates at this responsibility. It takes the encouragement of his workers’ brigade for Hoffi to realize his mistake and give his relationship with Gila a chance.
