21 DAYS UNDER THE SKY is an unconventional true story about those men who wont conform. Four guys meet in San Francisco to start a 3,800 mile ride down the Lincoln Highway – the oldest coast to coast route connecting the east to the west. They are riding vintage “choppers”; bikes prone to break down or run out of gas. Through the highs and lows of a long journey, this story examines the timeless American love affair with the motorcycle and an even greater American tradition: the road trip.