Carew, surgeon at an army post, is in love with Marjorie Caldwell, but Marjorie, who is all for social stuff, thinks her feeling toward him is only friendship. Dames comes to the post as junior surgeon, and supersedes Carew in her regard, marrying the girl. Mrs. Drew, a widow, comes to the post and an intrigue begins between Dames and the widow. Carew sees it, and to save Marjorie tells her that his absences are matters of duty. He asks to be transferred to Manila, and he and Dames are both sent there. On the way Carew warns Dames that he will lose Marjorie's love, and they quarrel, Dames being partly drunk. The ship hits a reef, and Dames, in an effort to save himself, wrenches a life preserver from a woman. Marjorie and Carew are left on the ship, but Carew rescues her, and in the morning they are on the shore of an island with an overturned boat and the bodies of their fellow passengers in the surf. On the shore of another island Dames is rescued by an Abbot, but his wounds cause ...