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Lassie: Season 12
Ep. 1
Lassie Meets a Challenge
Ep. 2
Sudden Fury
Ep. 3
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.
Ep. 4
Lassie and the Seagull
Ep. 5
Charlie Banana
Ep. 6
In the Eyes of Lassie
Ep. 7
Trouble at Paradise Lake
Ep. 8
Little Dog Lost
Ep. 9
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.
Ep. 10
In the Midst of Splendor
Ep. 11
Lassie Saves a Life
Ep. 12
The Waif
Ep. 13
Crisis
Ep. 14
Pitfall
Ep. 15
Temper the Wind
Ep. 16
The Gift of Life
Ep. 17
Lassie Catches the Poachers
Ep. 18
The Town That Wouldn't Die
Ep. 19
Just One Old Cow
Ep. 20
The Outcast
Ep. 21
Cradle of the Deep
Ep. 22
The Homesick Hound
A bloodhound needs to be relocated, but he dislikes all his new abodes.
Ep. 23
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.
Ep. 24
The Friendless
Ep. 25
Avalanche
Ep. 26
Babes in the Woods
Ep. 27
Lassie's Rescue Mission
Ep. 28
The Doll
Ep. 29
The Untamed Land
Ep. 30
The Day the Mountain Shook
Ep. 31
The Vigil
Ep. 32
