In Grahame's story, a young boy discovers an erudite, poetry-loving dragon living in the Downs above his home. The two become friends, but soon afterward the dragon is discovered by the townsfolk, who send for St. George to rid them of it.
The boy introduces St. George to the dragon, and the two decide it would be better for them not to fight. Eventually, they decide to stage a fake joust between the two combatants.
As the two have planned, St. George harmlessly spears the dragon through a shallow fold of skin suggested by the dragon, and the townsfolk rejoice (though not all of them, as some had placed bets on the dragon winning). St. George then proclaims the dragon is reformed in character, and he assures the townsfolk the dragon is not dangerous. So the dragon is then accepted by the people.