An Indian uprising threatens Arizona Dells, where reside the Ryans, father, mother and three daughters. Mary Ryan asks Bob, her sweetheart, to go and save her married sister. A bloodthirsty horde of Apaches wound Bob, but he perseveres until he reaches the cabin of Mary's sister, where he finds her and her husband massacred. Bob snatches their baby from its cradle and starts homeward. Settlers, trappers and scouts surround Bob on his return and, hearing his story, determine to exterminate the redskins. This is done only with loss, but brings a victory to the whites. Bob is rewarded.