Season 12
Episodes
1. Lassie Meets a Challenge
1965-09-12
No overview available.
2. Sudden Fury
1965-09-19
No overview available.
3. Lassie and the Dynamite
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.
4. Lassie and the Seagull
1965-10-03
No overview available.
5. Charlie Banana
1965-10-10
No overview available.
6. In the Eyes of Lassie
1965-10-17
No overview available.
7. Trouble at Paradise Lake
1965-10-24
No overview available.
8. Little Dog Lost
1965-10-31
No overview available.
9. Lassie's Time of Peril
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.
10. In the Midst of Splendor
1965-11-14
No overview available.
11. Lassie Saves a Life
1965-11-21
No overview available.
12. The Waif
1965-11-28
No overview available.
13. Crisis
1965-12-05
No overview available.
14. Pitfall
1965-12-12
No overview available.
15. Temper the Wind
1965-12-19
No overview available.
16. The Gift of Life
1965-12-26
No overview available.
17. Lassie Catches the Poachers
1966-01-02
No overview available.
18. The Town That Wouldn't Die
1966-01-16
No overview available.
19. Just One Old Cow
1966-01-23
No overview available.
20. The Outcast
1966-01-30
No overview available.
21. Cradle of the Deep
1966-02-06
No overview available.
22. The Homesick Hound
1966-02-13
A bloodhound needs to be relocated, but he dislikes all his new abodes.
23. The Silent Threat
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.
24. The Friendless
1966-02-27
No overview available.
25. Avalanche
1966-03-06
No overview available.
26. Babes in the Woods
1966-03-13
No overview available.
27. Lassie's Rescue Mission
1966-03-20
No overview available.
28. The Doll
1966-03-27
No overview available.
29. The Untamed Land
1966-04-03
No overview available.
30. The Day the Mountain Shook
1966-04-17
No overview available.
31. The Vigil
1966-04-24
No overview available.
32. The Strongest Instinct
1966-05-01
No overview available.