Jimmy Kowalski (Mortensen), a Gulf War veteran and former stock car racer, works as an automobile restorer and delivery driver at a shop in Idaho. He takes an assignment delivering a 1971 Plymouth Roadrunner to New Mexico, to pay his wife's mounting medical bills. While in New Mexico, he is offered another job: delivering a Chrysler Hemi engine-powered 1970 Dodge Challenger R/T to Salt Lake City, Utah. On the way, he's informed that his wife's already-difficult pregnancy has taken a turn for the worse, so he heads back home to Idaho, refusing to stop for police when flagged down for speeding.