When Mara calls Pearl sensible, she wants to prove how fun she is. With her eye off the ball, Pearl starts to make medical mistakes. Can she be a fun doctor?

After 799 years of winning the Great Gnome Games, Great Gnanna is worried she can't defend her title. To help, the doctors remind her she is just as fearsome as ever.

Pearl is sure Mara has Flailing Tail, but when purple spots appear on other patients, Zog and Gadabout suspect there is something afoot. Will Pearl listen to them?

The doctors realise Fergus's bog mud has healing properties. Fergus starts to feel overwhelmed when they send everyone to the bog for treatment.

Feeling unappreciated, Gadabout discovers a talent for gardening. Zog and Pearl discover his green fingers have upset the natural balance of the land, making others ill.

Boom is showing off but slips and has a mild panic. To hide his embarrassment, he challenges Zog to a dragon-off! Zog must set aside his desire to win and help his rival.

Twiggy has a funny tummy on the day of his performance. Nothing the doctors try works, not even the cure for froggy moths! Zog wonders if there is something else bothering Twiggy.

When Gadabout and Pearl lose the cure for Madam Dragon's missing flame, Zog helps them work together to assist his former teacher.

Zog and the doctors want to find Fergus a friend to cure his loneliness. Boom, Twiggy and Mara all try to be his new pal.

On a rare day without patients, Zog and Gadabout can't wait to unwind - but Pearl can't stop doctoring! They must help her relax before she bandages every creature in sight.

The doctors visit Fifi and see that she is feeling sad because her pies aren't up to her usual standard. They take her out to cheer her up - until Zog realises what she really needs.

Zog starts sleepwalking, wreaking havoc in the forest. Pearl and Gadabout need to work together to help him, but they can't seem to put their personal disagreements aside.

Gadabout and Pearl need Zog's help to catch a stink beetle for an urgent cure. Little do they know, Zog has become a taxi for the gnomes.

The fearsome Great-Gnanna Gnome has a case of bottom-fungal-itis. Zog and the doctors must figure out how to treat the mushroom without incurring Gnanna's anger.

Zog is too scared to fly after a bad crash landing, so Boom helps the doctors as their ambulance. Zog must overcome his fear and get back to the team.

Gadabout gives himself dance fever to prove he is as much fun as Zog and Pearl. When he can't stop boogieing, they must cure him before sunset so he is not stuck dancing forever!

Zog and the doctors do their best to care for Twiggy until his demands become too much. Once they realise what is really wrong, they help him feel special again.

Pearl accidentally gives Fizz and Zog a laughing disease called the draggles. The doctors must create an emotion potion before every dragon chuckles themselves to exhaustion.

With Pearl entranced by Fifi's glowing tummy mushrooms, Zog fears the worst as Gadabout attempts to mend Boom's wing himself.

Zog cures Fifi's hiccups with a big dragon roar. When patients are too scared to be treated by him, Zog has to choose between being a scary dragon or a doctor.

Zog and Gadabout try to rescue Princess Pearl, who has been locked up in her uncle's castle. Based on the book by Julia Donaldson and Axel Scheffler.

The story of a keen young dragon who wants to learn how to fly, roar and breathe fire in his first years at Dragon School. He is desperate to impress his teacher and win a golden star, but he is accident-prone, and each year he has to be helped by a kind young girl who patches up his bumps and bruises. In year four, he has to capture a princess - can the young girl help him with his trickiest challenge yet?