EXCLUSIVE: Showtime has put in development Heartland Trucking, a drama project from Walt Whitman Award-winning poet/TV writer Tony Tost (A&E’s Longmire), Television 360 (Game Of Thrones) and Fox 21. Written by Tost, Heartland Trucking is described as a scripted examination of the world of truckers in middle America and a family run business that serves those truckers as well as its own criminal agenda. Tost, repped by RWSG Agency and Management 360, executive produces with Guymon Casady, Meghan Lyvers of TV 360, the television production arm of Management 360.