Although renowned pediatrician Dr. Jim Keene loves his wife, Helen, she resents his devotion to his work and finds solace with other men. After the death of one of Jim's young patients causes him to suffer a nervous collapse, the couple takes a sea voyage to restore his health. Helen is the only woman among a crew of ruffians, and she develops an attraction to the brutish Captain Blake. When the captain is injured during a storm by a falling mast, Jim must operate to save his life. Despite the crew's pessimism, Blake recovers and immediately attacks Jim. However, the doctor's superior intellect enables him to defeat his rival. Helen realizes the error of her ways and rushes to her husband's side.