Time of Crisis
S15:E26
1969
IMDb
Neeka tries to drive his father's truck, which subsequently catches fire after bumping over a rock, and explodes in a ball of flame. Three terrified horses nearby break out of their corral and run off. After Neeka, Lassie and Dean put out the fire, they find the horses, including Neeka's horse Cloudy, who has been hurt in the escape.