Set in the Seventies, Hennessy is a Irishman who believes in peace, but who has had connections to the IRA. Hennessy's family is killed, and he plots revenge, setting out to assassinate Queen Elizabeth of England.
You can now watch Hennessy online on the following streaming providers in the United States.
| Writing | John Gay | Screenplay |
| Camera | Ernest Steward | Director of Photography |
| Editing | Eric Boyd-Perkins | Editor |
| Directing | Don Sharp | Director |
| Production | Peter Snell | Producer |
