第 3 集: John和Colin調查他們發現Lassie的河岸，在一艘船上發現了一個標有標籤的小狗項圈。

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John and Colin search for clues at the place where they picked up the puppy to take Lassie to see her mother. There was a boat on the river near where they picked up the pups, and in the boat was a puppy collar labeled Lassie. (Source: Amazon Prime Video)