They say that at the end of every rainbow is a pot of gold. So rainbows are a pirate's best friend - if you're looking for treasure. But, if like Captain Squid, you are hiding treasure. Rainbows are a pirate's worst enemy! Holly shrinks Lucy so she can play in the Little Kingdom. She has fun flying on Gaston the Ladybird and is invited to a sleepover at the Little Castle. A young witch is planning on moving into Mrs. Witch's house. Mrs. Witch has to come out of retirement to keep her place in the Little Kingdom.

Holly accidentally breaks her wand and must go to the Wand Factory at the bottom of the Great Elf Tree to get it fixed. Three baby ladybirds, Amber, Emerald, and Keith, have come to stay at their uncle Gaston's for the day. The baby ladybirds are exhausting! So Ben and Holly help Gaston to keep them entertained. The children are playing a game of superheroes. When Strawberry takes her supervillain a bit too far, it is up to 'Elf Man' and 'Fairy Girl' to save the day. King Thistle wants fish for dinner, so he goes out fishing with Mr. Elf, Ben, and Holly on Mr. Elf's boat. Mr. Elf tells them a story about the biggest, baddest fish ever - Big Bad Barry. The King wants to catch Barry for supper.

A magical card arrives at the Little Kingdom, inviting everyone to a party at Granny and Granpapa Thistle's castle. The party is full of wonderful surprises and Granpapa shows everyone his funny hobbies. Holly's father struggles to cope during a busy day, in which he has to launch a boat, judge a fruit and vegetable competition and make a speech at a dance festival. After a mishap involving a demonstration of the magic money chest and buttons, King Thistle tries to do a job to get a gold coin, with chaotic results. Part 2 of the Second Christmas Special) Ben and Holly set out on a Christmas rescue mission to save the 3 trapped grown-ups from Part 1, but they all end up in Lucy's house for a Merry Christmas with Lucy and her family!

Gaston catches a cold, so King Thistle invites him to stay at the castle while his old home is being repaired due to a leak in the roof. Holly accidentally smashes the Queen's new teapot, and Ben tries to help her repair it, but it doesn't work.The children are at the Elf Farm, but to learn where milk comes from they must visit a Big Farm, to find cows. They travel to Lucy Big's Farm, where she shows them all the animals.

Strange holes are appearing throughout the Little Kingdom. It's the Dwarves, deep underground, digging for treasure! A solution must be found before the Dwarves dig up everything. Holly and her parents try to impress the snobby King and Queen Marigold with help from the elf band.

Side guide

The duo visit the Wise Old Elf in the Great Elf Library to find out where stars go in the nighttime. Ben and Holly are having fun playing together in the meadow. Holly gets frustrated when Ben uses his elf skills to win all the games. Then Ben gets frustrated when Holly uses her magic skills to win all the games. Nanny Plum believes she works harder than The Wise Old Elf. The Wise Old Elf believes he works harder than Nanny Plum! King Thistle commands them to swap jobs for the day to settle the argument. Ben and Holly go to the beehive to see how honey is made. The Wise Old Elf is the beekeeper and proceeds to show the children his special way of collecting honey. Nanny Plum takes the Fairy children for a Nature Class in the woods and bumps into the Wise Old Elf, who is teaching a Nature Class to the Elf children.