Sonny's been reading a lurid novel about blackmailers and he spots Clancy crying after reading a letter, he becomes convinced that his young friend has received a note from someone demanding money.
Clancy's music teacher stops by Ranger Headquarters to share her concerns with Matt about Clancy's recent change in behaviour. Mark convinces Sonny Clancy is living a double life and is being blackmailed - just like in Sonny's novel. While Sonny waits to catch the blackmailer, Matt follows Clancy in Sydney and discovers the truth.