Callum works for Zoe Tate, whom he builds up a friendship with. Callum is devoted to Zoe and eventually confides in her that he is in love with her, although he knows his feelings will never be reciprocated as Zoe is a lesbian. When Zoe leaves the village, he helps her tamper with the gas pipes and timer, and so causes an explosion when the King family, who had conned her out the property, arrive.