A truck driver is kidnapping women and disposing of them in random locations and the BAU must find out his motive in order to catch him.
This episode is available online now, you can watch it via streaming. There are a lot of sites nowadays that stream TV shows. Here is one of the sites where you can WWatch Criminal Minds Season 5 Episode 17 in full, just follow this URL:
Link to video: http://tinyurl.com/criminalminds-0517