Having seen sugar maples while taking Timmy on a nature hike, Uncle Petrie returns to the woods to investigate--and runs into two men holding bank president Robert Hanson hostage. Remembering that he taught Timmy smoke signals on their hike, he makes a desperate gamble while helping one of the criminals make a fire.

Tongues wag in the neighborhood after Lassie picks Ruth's ticket as a winner in a raffle for a piano--but the real loser is Timmy, who's forced to take lessons

The Army is conducting war games near the farm, and excited Timmy, Boomer, and their friends plan their own maneuvers. But it's no game when scout Timmy and his ""war dog"" Lassie wander into a live mine field!

Asa Winkler, a conniving handyman, claims Lassie bit him and tore his pants to obtain odd jobs at the Martins--and arranges other ""accidents"" to stay on.

Timmy and Boomer are heartbroken when they find out Lassie's puppies are to be sold, so Lassie hides them in an old pen in the woods. But the mischevious babies get free.

The entire family pitches in to help Timmy win in his Cub Scout troop's kite-flying contest, especially after the original kite is lost.

Lassie falls in love with Suzy, a canine hand puppet manipulated by a down-on-his-luck ventriloquist.

Timmy and Boomer are convinced that their new neighbor is a bank robber.

While helping Timmy get pictures for a photo contest Paul and Uncle Petrie comes across a uncooperative man hunting pheasants on the Martin property.

Timmy wants his school to participate in The Lone Ranger Peace Patrol program encouraging children to save their money to buy saving bonds to support the United States.

At the church carnival Timmy and Boomer dresses Lassie as a fortune teller but it does not goes as they planned.

An unprepared city boy who has after a quarrel run away from his uncle with whom he is visiting leads Timmy and Boomer who are camping out in the Martin barn into danger in the woods.

When Boomer goes on an overnight visit, Mike who has been left in Timmy's care becomes shut in the trunk of the Martin's car while chasing his ball and taken to a garage where a fire starts.