Season 12
Episodes
Lassie Meets a Challenge
Sudden Fury
Lassie and the Dynamite
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.
Lassie and the Seagull
Charlie Banana
In the Eyes of Lassie
Trouble at Paradise Lake
Little Dog Lost
Lassie's Time of Peril
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.
In the Midst of Splendor
Lassie Saves a Life
The Waif
Crisis
Pitfall
Temper the Wind
The Gift of Life
Lassie Catches the Poachers
The Town That Wouldn't Die
Just One Old Cow
The Outcast
Cradle of the Deep
The Homesick Hound
A bloodhound needs to be relocated, but he dislikes all his new abodes.
The Silent Threat
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.
The Friendless
Avalanche
Babes in the Woods
Lassie's Rescue Mission
The Doll
The Untamed Land
The Day the Mountain Shook
The Vigil