Fred Zimmer is confronted by Sarah and her friend Cooper, who demand he acknowledge and marry Sarah because she has twins claimed to be his. Fred denies knowing Sarah well and insists the children can't be his. Harriet, Fred's girlfriend, urges him to take responsibility, but Fred remains defiant until paternity test results arrive confirming he is the father. Despite the undeniable proof, Fred struggles to accept the news, recalling that he met Sarah only briefly on a bus. The episode ends with Fred confused and shaken, facing the consequences of the unexpected revelation.