Season 12

1965/09/12

1965/09/19

1965/09/26

In an area being developed for swimming and fishing, two youngsters playing hooky wander into the blasting zone. Lassie is able to bring help and rescue the boys.

1965/10/03

1965/10/10

1965/10/17

1965/10/24

1965/10/31

1965/11/07

A flooded river threatens to sweep away a bridge construction project. Ranger Corey Stuart and Lassie brave the raging waters in a small boat to construct a log chain barrier and control the flow of water and logs.

1965/11/14

1965/11/21

1965/11/28

1965/12/05

1965/12/12

1965/12/19

1965/12/26

1966/01/02

1966/01/16

1966/01/23

1966/01/30

1966/02/06

1966/02/13

A bloodhound needs to be relocated, but he dislikes all his new abodes.

1966/02/20

Corey and another ranger battle a spruce bud worm infestation by spraying but meet resistance from a horse ranch owner. Lassie makes friends with a colt and reveals the true cause of death of one of the horses.

1966/02/27

1966/03/06

1966/03/13

1966/03/20

1966/03/27

1966/04/03

1966/04/17

1966/04/24

1966/05/01