Cesca is drawn into a complicated situation that threatens to end her career. Meanwhile, Grantly's increasingly slovenly behaviour causes concern for Ruby, who is facing her own problems in the form of Janeece and John's blossoming friendship. Cesca's honest approach in her drugs-awareness class backfires when Sam comes to her asking for money to buy drugs. Sam's intentions are good, however; she wants to buy the drugs from Amy and Lauren and then throw them away in order to protect her friends. The ever-manipulative Amy doesn't trust Sam and hatches an elaborate plan to frame her. Facing exclusion, Sam relies on the honesty of her best friend, Lauren, while Cesca's reputation lies in tatters as Karen struggles to unravel the truth.