All they do is smoke. Literally all they do. I wanted to like this so much but I couldn't get past the utmost stupidity of Smoking on a space station, especially when they're short of oxygen.
None of the characters acted like astronauts; they acted like idiots. Too bad, as I really like the actors.
I did laugh out loud when Kate Walsh's character said, "I don't know; I'm not a doctor" as I'm used to seeing her play Addison Montgomery, lol.