When the third partner in their small Cape Cod trading business dies, Shad Gould and Zoeth Hamilton adopt his little daughter Mary-'Gusta. After several years, the two old salts decide that Mary should be properly educated and send her to an exclusive school in Boston, telling her that her father left her a large fortune. In Boston, Mary meets Crawford Smith, but their happiness together is threatened when she learns that he is the son of Edgar Fuller (alias Smith), a scoundrel who had run off with Zoeth's wife and stolen his money.
| Actor | Role |
|---|---|
 Vivian MartinMary-'Gusta | Mary-'Gusta |
 Theodore Roberts'Cap'n Shad' Gould | 'Cap'n Shad' Gould |
 James NeillZoeth Hamilton | Zoeth Hamilton |
 Harrison FordCrawford Smith | Crawford Smith |
 Bert HadleyEdgar Fuller aka Edwin Smith | Edgar Fuller aka Edwin Smith |
| TTom BatesIsaiah | Isaiah |
 Helen GilmoreMrs. Hobbs | Mrs. Hobbs |
| JJohn BurtonJudge Baxter | Judge Baxter |
| RRichard CummingsRastus Young | Rastus Young |
 Jane WolfeMrs. Young | Mrs. Young |
| CCecil LionelMr. Bacheldor | Mr. Bacheldor |
 Jane KeckleyMrs. Bacheldor | Mrs. Bacheldor |
 Antrim ShortJimmie Bacheldor | Jimmie Bacheldor |
| CClarice UrheMiss Keith | Miss Keith |
| RR.O. PennellJohn Keith | John Keith |