A much loved Prison Missioner has died. His replacement struggles to live up to his predecessor's saintly reputation until he receives inspiration from the Holy Spirit.
In this delightful fantasy adventure, a mild-mannered writer of adventure stories for girls finds himself presented with an intriguing proposition from an elderly fan. She suggests that they conspire to steal a secret whiskey formula from ruthless distillers, who themselves stole it from her family in years gone by. With the recipe back in hand however, it's not long before they attract attention from the Inspectors of Scotland Yard.
C'est le moment du rallye de vieilles voitures entre Londres et Brighton, et ce n'est pas l'amitié d'Alan McKim et Ambrose Claverhouse qui va empêcher ces deux-là d'essayer de s'humilier mutuellement. Sur le parcours, de vieilles rancunes sont ravivées au point que les deux hommes décident de faire un pari « amical » sur celui qui sera le premier à regagner Londres…