This is on ITV starring Piers Brosnan.
In 1849, Eli McCullough is kidnapped at the age of 13 by Comanches and raised as an adopted son. In 'present-day' 1915, he is a powerful, ruthless cattle baron turned oilman, and struggles to maintain his business empire as he looks to pass it on to his sons and grandchildren.
Enjoyed the first episode, so far so good and Piers Brosnan is great -;apart from the accent !