While following some of the local teenagers who are hanging out in some wasteland, Duncan suffers a fall and injures himself. He is hospitalised for several months and when he returns home, his personality drastically changes. When Duncan starts high school his behaviour gets worse as he frequently causes trouble. One incident includes the making of a homemade bomb with his friend Jack, who burns himself in the process. Alf experiences a shock when the bomb goes off and injures his arm. The Stewarts attend counselling mediated by Natalie Nash (Antoinette Byron).