Collin resides in the Yorkshire mining village of Greenall Bridge, where he is known as the best friend of John Carraclough. An episode focusing on his first love details his infatuation with Chris, an Australian girl temporarily in England. He becomes completely enamored with her and seeks Lassie’s assistance to recover a trinket that belonged to Chris’s mother. In a separate episode, Collin is implicated in a cattle theft, as referenced by the episode title “Sandy Steals Cows?”, which questions his involvement in the incident.