After healing the leg of the murderer John Wilkes Booth, responsible for the assassination of President Abraham Lincoln, perpetrated on April 14, 1865, during a performance at Ford's Theatre in Washington; Dr. Samuel A. Mudd, considered part of the atrocious conspiracy, is sentenced to life imprisonment and sent to the sinister Shark Island Prison.
You can now watch The Prisoner of Shark Island online on the following streaming providers in the United States.
| Directing | John Ford | Director |
| Writing | Nunnally Johnson | Screenplay |
| Production | Darryl F. Zanuck | Producer |
| Production | Nunnally Johnson | Associate Producer |
| Editing | Jack Murray | Editor |
| Art | William S. Darling | Art Direction |
| Art | Thomas Little | Set Decoration |
| Directing | Edward O'Fearna | Assistant Director |
| Camera | Bert Glennon | Director of Photography |
| Costume & Make-Up | Gwen Wakeling | Costume Designer |
| Sound | W. D. Flick | Sound |
| Sound | Roger Heman Sr. | Sound |
| Sound | Louis Silvers | Music Director |
| Crew | Joseph M. Schenck | Presenter |
