Muff Potter was arrested because he was accused of murdering doctor Robinson. Tom Sawyer and Huck Finn witnessed the murder in the churchyard. But it wasn't Muff who killed the doctor, but it was Injun Joe who did it. Muff Potter who was drunk, became a victim of Injun Joe's evil ways, because he placed the murder weapon into Muff's hand while he was unconcious after suffering a hit on the head. Because Tom and Huck swore to each other not to tell anyone what they have seen that night, they hesitate at first to come forward in the trial. But they were aware that an innocent man could be hanged for a murder he didn't commit, so they finally came forward. Injun Joe who was present at the trial, flees out of the courthouse and goes in hiding. Tom Sawyer and Huckleberry Finn know that their lives could be in danger now Injun Joe managed to escape.
Aunt Polly isn't very young anymore when she takes her two nephews Tom and Sid Sawyer under her wing after their parents died. Tom doesn't like to go to school and is always full of mischief, his brother Sid on the contrary tries to be a brave boy, but he doesn't get along well with his brother Tom. One day aunt Polly gets so fed up with Tom and his pranks, she punishes Tom by putting him to work at whitewashing the backyard fence on his free Saturday.As usual Tom thinks of a clever plan to get out of this.
Because Tom Sawyer is always into mischief, Aunt Polly punishes him by whitewashing the fence. Tom who doesn't really feel like doing it, lets his friends and some village kids do it for him after letting them pay for it in bible tickets. Tom falls in love with judge Thatchers pretty niece Becky and does everything to win her heart. At Sunday school Tom makes a complete fool of himself in front of everyone including Becky. After giving his teacher the most bible tickets he so called earned, Tom is convinced that Becky is impressed.