The narrative follows the life of Tom Jones, a foundling of mysterious origins, as he navigates the complex social hierarchies of 18th-century England while seeking to win the hand of his beloved Sophia Western. Tom Jones is a spirited and impulsive young man whose pursuit of love and social standing is constantly thwarted by his own indiscretions and the machinations of his rival, Blifil. The story unfolds through a third-person omniscient narrator who frequently pauses the action to address the reader directly, providing philosophical commentary on human nature and the art of storytelling. The world is defined by rigid class structures, rural country life, and the bustling, often dangerous streets of London, all of which serve as a backdrop for the protagonist's moral development. The narrative framework is structured as a sprawling picaresque, utilizing a series of episodic encounters to build a comprehensive portrait of contemporary society.

Readers and critics frequently highlight the work as a foundational text in the development of the English novel. Discussion often centers on the balance between the intricate, tightly woven plot and the narrator's expansive, often humorous digressions. Scholars emphasize the effectiveness of the satire in exposing the rigid moral codes of the period. The work is widely regarded for its ability to blend high-minded social critique with the accessible, fast-paced nature of a classic adventure story.