The company soldier Hannah and the scientists Gavin and Dimitri are researching an algae project on board the Rubikon space station, which is supposed to permanently supply humanity with oxygen and food. But suddenly the earth disappears below them in a brown, toxic fog and all contact is broken off - are they the last survivors of humanity? Should they initiate the safe station, dare the return flight and thereby risk their lives?

Teenage Sascha has two dreams: to write a novel about her mother and to take revenge on her step-father who brutally murdered her. When she meets the newspaper editor Volker, he invites her to come to his and his son's place. A subtle love triangle begins which helps Sascha to find her personal way of growing up.