"Like most boys, Tom Sawyer would rather play hooky than go to school. But Tom's lively imagination and thirst for adventure lead him into the most extraordinary situations, from a search for buried treasure to the accidental witness of a murder in a graveyard. All of his exploits -- tricking his pals into whitewashing a fence, sharing his medicine with the family cat, disrupting a church service with a pinching insect -- are flavored with the humor...

After Becky ignores Tom for five days, he decides to run away from home to be a pirate. During the night he sails to Jackson Island on a raft, along with Huck and Ben.

Tom Sawyer doesn't like school much. Escaping from the schoolhouse, he's off to the woods to catch a wild pig with his friend Huck. Their attempts to sell the pig at the harbor end with a wild disturbance on the steamboat.

Tom tries to arouse Becky's interest at Sunday School, but is ignored. That night Old Sam shows him a special charm to make wishes come true.

The villagers do not like drunken Muff and Indian Joe. Tom and Huck rescue Muff and he, in return, tells them about a treasure buried near St Petersburg. The boys decide they will find the treasure, and Indian Joe joins Muff in his search.

A large steamship comes to St Petersburg. Tom and Huck steal aboard for a trip. Next day, Tom boasts about their adventure, fascinating his classmates.

Mr. Dobbins, the schoolteacher, doesn't trust Tom, but all Tom's classmates like him. Younger brother Sid saves Tom from punishment at school. Later, Tom and Huck decide to conduct their treasure hunt at night, to avoid Indian Joe.

Aunt Polly falls sick and is struck with an idea. She calls Tom to her bedside, pretending to be dying. Aunt Polly tells Tom she cannot go to heaven unless he promises to be a good boy but Tom refuses to promise, because he doesn't want his aunt to die.

Tom, Huck, and Ben enjoy their adventure on the island while everyone in the village worries about their disappearance. A rainstorm washes away their raft, and it is found by a villager broken to pieces.

After the funeral, Tom is a hero at school, and everyone wants to hear his story. Charlie inks Tom's schoolbook out of jealousy, and Tom is punished. Becky saw what happened and feels guilty that she did not tell the truth.