After Rocket discovers a giant fossil, new foster kid Benjamin thinks he sees a real dragon. However, Rocket's reputation is put on the line when they go on a sunset hunt for the creature. Meanwhile, Brandon is torn over whether to reply to his mum when she decides to get in contact with him.

When Dibber cheats on a school presentation, he appears to become the target of ancient powers. As runic stones tell of disaster for the one he loves the most, he finds out his mum is lying to him. When Charlie the horse falls ill, Alli realises that she doesn't have enough time for Lucas.

Madison's sudden strange behaviour leads the Knot kids to believe that she may be a vampire. When a chick goes missing on the farm, the gang act quickly before she can hurt anyone else. Meanwhile Rocket realises he might actually fancy Bethany Summer.

When Archie uncovers an old toy soldier under his bed, Jade worries that he might have brought the toy to life. Whilst Dibber copes with spending more time with Bethany Summer, his suspicions grow that Benjamin is going to hurt Rocket.

There's a storm at the Knot, lightning hits and sends Jade flying. As strange things happen around Jade, she appears to have developed potentially dangerous magical powers. Meanwhile, Brandon decides to contact his mum, only for it to have an unexpected result.

A lone postbox on top of Dirgelmor's only mountain is rumoured to be able to send letters to historical figures. But when Brandon uses it to send a letter to his mum, it leads to a big surprise for him.

A skeleton washes up on the Dirgelmor shore, uncovering the journal of Lord Loomis and his quest to find a mirror that reflects a person's true self. As Rocket goes on the hunt for this mirror, the whole group is put in danger when Benjamin's secret is revealed.

A new energetic foster kid, Izzy Wizzy, makes a noisy arrival at the Knot. However, it's not long before everyone wonders how much trouble she might cause. Meanwhile, Archie discovers the new pig on the farm can talk but will only speak to him.

Alli sits on the rocks, looking at her lifeplan - she is upset that so far she has not achieved her goals. However, a mythical and handsome selkie might just have arrived to save her from her loneliness. Meanwhile, Izzy gets herself into more trouble when she loses one of Sarah's treasured rings.

Upset over Brandon's departure, Jade searches for a ruined castle in the hope she can be happy forever. However, once Jade arrives she gets trapped there by the ancient knights that defend it. Meanwhile, a mistake on the farm may mean the end of fostering at the Knot.

In the middle of the night, Alli wakes to find Izzy heading to an oak tree on the farm. Wondering why Izzy is talking to the tree, Alli touches her shoulder. Startled, Izzy gives out a roar, waking everyone on the farm. The next morning, Peter and Sarah bicker about the kids. Rocket explains they have to work out what is wrong with Izzy before Peter puts a definite stop to fostering. They investigate the oak on the farm, noticing it's leaking brown sap - it looks like it's crying. Wendy tells Rocket and Dibber not to discuss the tree with the Oldest Man. She tells them that last time there was a tree like this, he stayed up in its branches until an expert would treat it. Meanwhile, Jade uses W2TV to find Izzy by a stream. Seeing her writing more in her notebook, Rocket decides he needs to find out what it contains. He tries to look at her notebook but she catches him. Rocket tells her about the weeping oak, and Izzy explains that she thinks the tree is trying to talk to her but it is muffled. She also points out the words in her notebook are just a list of all of her favourite sounds. Rocket suddenly works out the cause of Izzy's strange behaviour. When Rocket arrives to explain what's wrong with Izzy, Alli interrupts, having seen Izzy attempting to pull down the weeping oak with the tractor. As Rocket tries to stop her, he nearly gets run over and Peter pulls her out of the seat. As he is about to tell Izzy off, Rocket interrupts, revealing Izzy is actually going deaf. Meanwhile, Peter tries to cheer up a glum Alli, with little success. Izzy notices a sketch Alli has been doing and asks why she doesn't do it for a job. Realising she loves art more than the idea of being a solicitor, she tells Sarah.

Peter announces there will be no new foster kids at the Knot. When Jade, Archie and Izzy Wizzy overhear that someone will be leaving the farm they search for the legendary Dirgeldoor to take them to their true home. A journey that will trap all of the Knot kids deep within an abandoned mine and lead them to discover who really is leaving the island.

Peter announces there will be no new foster kids at the Knot. When Jade, Archie and Izzy Wizzy overhear that someone will be leaving the farm they search for the legendary Dirgeldoor to take them to their true home. A journey that will trap all of the Knot kids deep within an abandoned mine and lead them to discover who really is leaving the island.