1984s Tank was a rare foray into feature films for Marvin J. Chomsky, a prolific television director whose work spans popular series such as Gunsmoke, Cannon, Hawaii Five-0, and Mission: Impossible; as well as notable tv mini-series such as Roots and Victory at Entebbe.
James Garner stars as Cmd. Sgt. Maj. Zack Carey, a hard charging but reasonable military man who has just arrived for his newest post at an army base in the deep south of the U.S., bringing with him both his family (Shirley Jones and C. Thomas Howell) and his personal Sherman tank. It's not long before his no-nonsense manner smacks face first against a corrupt deputy (James Cromwell) and thus he and his family become entangled in a quickly escalating conflict with the nasty Sheriff Cyrus Buelton, played perfectly by G.D. Spradlin.