The Red Blood of Courage (1915)

Professor Duane, an ethnologist, and his assistant, Roscoe Harding, plan a journey into the wilds of Hindustan. Harding is in love with Lydia, the daughter of Professor Duane, and they are engaged to be married. Lieutenant Tavish, a British army officer, is attracted to Lydia and plans to take her away from Harding by fair means or foul.