When Gramps quarrels with Matt Brockway after a hotly contested checker game, both men forbid their sons to play with each other. After Jeff and Porky's first attempt to fix the problem goes horribly wrong, so the boys hide in the woods in hopes that in ""saving"" them Gramps and Matt will be friends again.

Jeff overhears the wrong conversation, and, thinking Gramps needs an expensive operation, attempts to sell Lassie to raise the money.

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