The narrative follows the life of the foundling Tom Jones as he navigates the complex social hierarchies of 18th-century England while attempting to win the hand of his beloved Sophia Western. Tom is a spirited and impulsive protagonist whose moral lapses and genuine kindness frequently land him in precarious situations. He faces opposition from jealous rivals, rigid social conventions, and the machinations of those who wish to see him disinherited. The story employs a third-person omniscient narrator who frequently addresses the reader, providing commentary on the nature of the novel itself and the characters' behaviors.

Readers and critics frequently identify this work as a foundational text in the development of the English novel. Discussion often centers on the balance between the protagonist's moral ambiguity and his inherent goodness, which challenges the rigid social standards of his time. Many highlight the narrator's witty interventions as a defining stylistic feature that keeps the pacing brisk despite the length of the text. The intricate plotting is often praised for its ingenuity, particularly in how disparate narrative threads converge in the final acts. Scholars continue to analyze the text for its sharp social critique and its enduring influence on the structure of comedic fiction.