When Tasha from returns visiting her half-brother Dylan Russell (Brett Maitland-Hicks) in the city, she introduces a new friend Jonah Abraham (James Mitchell). It soon transpires that Jonah is part of a religious cult called The Believers. Robbie is reluctant to believe that The Believers are above board, but Jonah and his friend Charity Fernbrook soon convince him and Tasha to join their commune in accordance with the spiritual teachings of Jonah's mother and the leader of The Believers, Mumma Rose (Linden Wilkinson).