Don Anderson (Greg Kinnear) is the Mickey's food restaurant chain's Marketing Director. He is the inventor of the "Big One" the hamburger best seller of Mickey's. An independent research reports the presence of cow's feces in the Big One. So Don is sent to Cody, Colorado, to verify if the slaughterhouse, main supplier of Mickey's, is efficient as it appears and the production process is regular. During his investigations he discovers the horrible truth behind a simple hamburger; the reality is not like we think it is. Don discovers that the mass production system involves from the temp workers like Amber (Ashley Jonhson), to the exploitation of Mexican irregular immigrants. It is not only the meat that is crush in the mincing machine, but all our society.