This movie starts out with the surviving charater from the first movie.  Then it goes into the 3 girls who are traveling and meet up with the girl who wants to be their friend (you know to bait them)  This movie gets into the capturing the people much faster than the first did.  There is a lot less porn like action in this one as well. 
One thing that is good is the way the girl are tortured it is much more gruesome then the first.  The one bad thing about the movie is that they do shoot a child and I think that is just wrong.