McDonald's filed a lawsuit against multiple meat companies over allegations they engaged in a price-fixing scheme for beef specifically the last nine years.

As Americans deal with high prices of beef both at the grocery store and at the drive-thru, fast food giant McDonald's is seeking to go after what it believes to be the root of the problem. On Oct. 4,

McDonald’s says Cargill, JBS, Tyson and National Beef secretly worked together over the past decade to limit supplies of cattle and fix prices, according to a federal lawsuit filed this month. Those “Big Four” meatpackers collectively control 85% of the beef industry in the U.S.