Nori attempts an experiment and accidentally shrinks Meesha on the day of Meesha's students' karate comp. The duo try to bring Meesha back to normal, but Meesha wonders if her new size provides her an edge.

The gang find an ally of theirs crystallised in the home. When they realise the crystallisation is contagious, they search the island for a vital ingredient to cure it.

Nori feels guilty about lying to Silas about the island's mysteries; Silas returns from a shipwreck dive and gets trapped inside a mirror.