Because he has given up his study of architecture to become a fisherman, State of Maine social worker Ann Freeman breaks her engagement to Hod Stillwell, explaining that she could never bear being constantly concerned about his safety. In this same period, she convinces her friend Mary McKay to take in 11-year-old orphan Donny Mitchell, whose father and uncle died at sea. Longing for the sea, Donny has run away several times. Ann hopes the tough but fair Mary will bring some discipline into his life. The following day, Donny befriends Hod while hunting. Soon after, Hod, returning from a fishing trip on his boat with his partner, Portuguese Joe Sanger, discovers Donny on his lobster bank, having rowed out to it in a dingy and stolen two of Hob's lobsters, without knowing they belonged to Hod and Joe. Hod gives him a good telling off and returns him home to Mary and suggests that she let Donny work for him on his boat on Saturdays. She agrees and Donny is very happy out at sea on the boat and even catches a large halibut, his share of the catch earning him $5.75. This worries Ann, who has recently witnessed her friend Molly Thatcher's loss of her husband to the sea and she threatens to move the boy to an inland family if Hod allows Donny to go out to sea on his boat again. Reluctantly, Hod follows Ann's advice and tells Donny he cannot work for him any longer and that their partnership is ended. Very upset and feeling betrayed and rejected by Hod, Donny stands on the jetty and watches the boat go off into the distance without him, before going into town and stealing a camera from a drug store and selling it to make enough money for him to run away from home again and return to the sea. He steals a boat and puts to sea, but is caught in a terrible storm and has to be rescued by Hod and Joe. Realizing that she cannot prohibit Donny from being near the sea, Ann allows him to return to work for Hod. Donny goes to Hod and tells him the good news and Hod agrees to let Donny go out with him on his boat again. Happy beyond words, Donny runs home to tell Ann and Mary the good news, but as he runs into the house, he notices the local sheriff and the owner of the second hand shop to whom Donny sold the stolen camera are awaiting him. Ashamed, Donny admits the theft and begs Ann and Mary not to tell Hod he is being sent away to a reform school, fearing Hod will not want to see him anymore. Hod soon asks Ann about Donny's whereabouts. Ann does not tell him. Hod starts to investigate and finds out that Donny is in a reform school. Not wanting Donny to be in this situation, Hod prompts the state to let him adopt Donny. Donny initially refuses the adoption, ashamed of what he had done. However, when he finds out Hod is not mad at him, he allows himself to be reunited with him and he returns home accompanied by Hod and Ann.
