TRUTH is the incredible true story of Mary Mapes (played by Cate Blanchett), an award-winning CBS News Journalist and Dan Rather's producer, who broke the Abu-Ghraib prison abuse story, among others. The film chronicles the story Mapes and Rather uncovered that a sitting US president may have been AWOL from the United States National Guard for over a year during the Vietnam War. When the story blew up in their face, the ensuing scandal ruined Dan Rather's career, nearly changed a US Presidential election, and almost took down all of CBS News in the process.