Lassie
S04E27 Concussion
Timmy is determined to visit a blasting site, even though Lassie tries to dissuade him. Unfortunately, she gets hit on the head by a rock sent flying by the dynamite and seems to lose her memory. Confused and disoriented, she ends up wandering off from the farm.
Season 4 Episodes
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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25
26
27
28
29
30
The Runaway
The Suit
Graduation
The Burro
The Berry Pickers
The Raccoon
The Ballerina
The Elephant
The Spartan
Happy
The Wolf
The Tooth
Transition
Timmy's Family
The Bike
The Goose
The Baby-Sitter
The Crisis
The Business
The Ring
The Greyhound
Inoculation
The Pony
Sinbad
The Square Dance
The Garden
Concussion
The Hungry Deer
The Hospital
The Penguin