http://www.imdb.com/title/tt0303461/ check here Deb
Firefly was like a cross between sci/fi and a western, done by Joss Wheden (Buffy and Angel series) we loved it and it didn't get past series 1 I don't think.
Serenity was the movie version that was also made.
Did you ever watch the Sara Connnor chronicles? The treminator that lived with them was in Firefly to and you would also recognise a few other faces.