Eddie and KT investigate Miss Denby. Patricia and Fabian suspect KT of working for Victor. Jerome and Mara take the business studies competition seriously and personally.

Eddie makes a shocking discovery about his dad. Fabian translates the message from the envelope. The clues point towards the Gatehouse, but their decision to investigate places Amber in great danger.

As Fabian, Patricia and Alfie search for Amber, KT and Eddie's suspicions about Miss Denby are confirmed. Jerome's sabotage of Mara's business project backfires and Amber learns the adults are planning a mysterious ceremony...