The Glorious Trail (1928)

"The Gripping Story of the First East to West Telegraph! See 1,000 Indians Attacking a Group of Settler and- KEN MAYNARD in THE GLORIOUS TRAIL"

After a work crew stringing telegraph wires across the Great Plains is slaughtered by Indians, Pat O'Leary, the company superintendent, must take out another supply train to make the dangerous trip across open country. The Indians attack and are driven off. On the day the wires are finally strung, the settlers gather to hear the first message from the East.