The Hills Have Eyes (2006) - A suburban American family is being stalked by a group of psychotic people who live in the desert, far away from civilization.
http://www.imdb.com/title/tt0454841/?ref_=nv_sr_1
The Hills Have Eyes II (2007) - A group of National Guard trainees find themselves battling against a vicious group of mutants on their last day of training in the desert.
http://www.imdb.com/title/tt0800069/?ref_=nv_sr_2