Smiley Greevins is a cheeky, mischievous and imaginative little boy who lives in the small Australian country town of Murrumbilla. His alcoholic father, Bill is a poor drover who is often away for long periods while his mother, overworked and embittered by her life, is the one who has to deal with Smiley's frequent misadventures. One of these pranks sees Smiley and his friend Joey run foul of the local policeman, Sgt Flaxman. Amused by the careful attention the sergeant is paying their new schoolteacher, Miss Workman, the boys initially enjoy viewing this budding romance from a safe distance. When Flaxman one day escorts Miss Workman to her house, however, Smiley borrows his police bicycle. When he accidentally crashes the bike Smiley and Joey quickly replace it from where they took it and flee the scene.
Determined to buy his own bike Smiley subsequently takes on odd jobs to raise the money for his dream, but in doing so unwittingly helps the local publican, Rankin to sell opium to the local Aborigines. When Smiley's father returns home and steals all the money he has saved Smiley is furious. He confronts his father and in the ensuing argument unintentionally knocks his dad out with a cricket bat. Frightened of the consequences he runs into the bush and is later bitten by a snake. A swagman saves his life and when Smiley gets back to town he tells the police about Rankin, who is subsequently arrested. The story ends with the grateful townsfolk rallying together to buy Smiley his bike.
