The future of The Spring is under threat as the school inspector visits, whilst the kids take part in the annual PRU ‘Bake Off'. What could go wrong? Belle seems determined to bring the school down whilst Sienna struggles to balance her desperation to save the school with her enthusiasm to win the Bake Off. The boys use the competition to launch an edibles business. Meanwhile, a revelation about one of the kids overshadows events and shocks everyone to their core.