While on a hunting trip in North India, George Hamilton and his daughter Sarah find a native hut in which a woman has just died. Her little daughter, crying beside her mother's body, touches the heart of the man and he takes her to his home in Calcutta. She grows up into a most beautiful young girl, but is used as a servant by Sarah Hamilton. Captain Carruthers, a doctor in the British army, is engaged to Sarah and on his calls at her house is very kind to the little orphan, Aissa. This is so different to the treatment she is used to, that she expresses a deep devotion that will last as long as she lives. Sarah is of a very cold disposition and, though engaged to Carruthers, does not seem to care very much for him. She strikes Aissa in a fit of temper and the doctor reproves her for it. To makes him jealous she flirts with one of the officers of the regiment. She discovers that this officer is very rich and throws Carruthers over to try to win him Carruthers, suffering from a fever, sees Sarah flirting and in a fit of temper strikes his superior officer, badly wounding him. Some of the soldiers see the scene and report to the commander, who orders Carruthers' arrest. Aissa tries to persuade Carruthers to escape, but he refuses. She puts one of the native drugs in a glass of water he has asked for. and as he becomes unconscious has him carried off by some of his native servants to whom she has explained his predicament. They take him to the mountains where he regains his strength, but is afraid to return on account of his action. Sarah achieves her purpose and marries the rich officer, Colonel Allen. On a hunting trip later, the Colonel is seized by an attack of appendicitis. The party do not know what to do, as they are very far from medical aid. A native beater tells them of a wonderful man who lives in the next valley, who has been healing all the natives who have been sick. They decide to take the Colonel to him as a last resort. They ride off without waiting for Mrs. Allen. On their arrival at Carruthers' hut none of the party recognizes him and Carruthers does not recognize the Colonel, as he has grown a beard to hide the scar given him in the fight. Carruthers consents to perform the operation. Just after he has started Mrs. Allen (Sarah) rushes in. She recognizes Carruthers and he finds out for the first time on whom he is operating. He is very much tempted to let the Colonel die, but Aissa brings him to his senses. He finishes the operation and pronounces it successful. The Colonel regains consciousness and, recognizing Carruthers, starts to sit up. The movement causes a bleeding in the wound and his death, not, however, before he begs Carruthers' forgiveness. Sarah does not seem to mind the death of her husband and asks Carruthers to return to civilization with her and be as he was before. Carruthers spurns her request, and turning to Aissa proclaims that he will make her his bride as she has shown that she is a much better woman that any other he has ever met.