On the day of a coconut festival, Taylor returns from a trip only to find the entire festival's missing. The friends work together to figure out what's happened, and try to return everyone safely.
The friends receive a message and discover echo caves where they're haunted by their voices. Inside is a unique water formation that will help them communicate with another dimension.
The teens find Uncle Charlie's cassette tape about seeking a crystal in a Hidden Crypt - but the tape gets damaged before they hear the end. The group find the crypt, with its many challenging traps.
The gang search for a witch's amulet that can lift the veil between worlds. But they don't expect the witch to follow them home and trap them in Lila's house. Lila worries they'll miss the Solstice.
Overwhelmed, Lila wishes for a simple life in front of a painting - only to get stuck inside it. The others find a strange boy in her place, whom they must convince to return to the painting.
On Rock Island Challenge day, Meesha's competitive cousin visits and signs up to race against her. Even worse, Meesha and Ellis get stuck together.
Lila's sad on her birthday, so Ellis reveals his new AI creation to cheer her up. It leads them all over the island, as they test it and decide if they can trust it to help open a portal.
Lila wakes on the edge of a cliff. Worried about her extreme sleepwalking, Meesha follows Lila's latest sleeping expedition. while the others suss out a secret Institute project.
Lila's keen to impress in her interview for Institute Teen Ambassador, then develops mind control powers and keeps accidentally causing chaos. Her friends want to help her return to normal.
The gang visit a contamination zone and discover an amazing substance. They think it has incredible potential and want to test its capacity to unlock a doorway to the other side.
After attempting to run tests in a restricted Lab at the Institute, Ellis wakes up with split personalities. The two personalities clash, leaving the friends to wrangle the two versions of Ellis.
Nori's excited to take April Shon on a possible date, but might have to cancel when he becomes electric. As his amusing zaps turn serious, the gang search for a solution.
A mysterious woman arrives from the mainland asking to speak with Taylor. When some of the gang act strangely, they must use their instincts to protect each other and the Bermuda Queen.
The day of Meesha's students' karate comp, Nori tries an experiment and accidentally shrinks Meesha! They rally to get Meesha back to normal, but Meesha wonders if her size provides an edge.
The gang find an ally of theirs apparently crystallised in her home. When they realise the crystallisation is contagious, they're forced to traverse 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 - a pirate taking control of his body, out for revenge.
Mine workers see a ghostly hand coming out of the rock like someone is trying to break through. The gang investigate, piecing together sightings from around the island to find a pattern.
Emily and Sunny ingest a sap that makes them act like their 7 yr old selves. Ellis tries to protect Emily from embarrassing herself at work, and the others try to find the tree needed for an antidote.
As the island speeds towards environmental collapse, the teens are desperate to restore balance. With some new helpers, they must work together to return everyone, to their rightful homes.
As the island speeds towards environmental collapse, the teens are desperate to restore balance. With some new helpers, they must work together to return everyone, to their rightful homes.