Bella, Amaya, Violet, and Skyler all woke up from the same dream—only to find brand-new rings on their hands! According to Sunny’s History of the Shimmers book, history might be repeating itself, and the Moonbow Crystals are totally out of balance. But why is Miss Morton acting so calm about it? With their mysterious rings and a little crystal confidence, can the girls uncover the truth and restore the color balance to Rainbow World before it’s too late?

Shimmers Amaya and Violet portal jump to the beginning of the Rainbow, but something is different—the sky is bright red, and it’s SUPER hot! Even their pets are tired from the heat! Violet is eager to find the Crystal Palace fast, but Amaya wants to be careful. Can the girls work together to find the hidden Crystal Palace and restore the balance of the crystal at the beginning of the Rainbow?

Princess Marina's pets are being mean! They're jealous, and they locked Marina and Rosetta in a tall bell tower! The pets are fighting for the throne, and the Kingdom is going crazy! As Bella and Skyler work together to free Marina and Rosetta, Bella starts to fall under the Kingdom's green spell! Will they be able to re-balance the Moonbow Crystals before jealousy tears the Kingdom apart? Can their friendship beat the green magic and save the day?

Rainbow World may just stand a chance, but there are 4 Moonbow Crystals to save! What - or who will be waiting for them on the other side of the portal? Their quest takes a wild turn when they encounter the eccentric Wacky Clementine and the chaotic crew of pets! But time is ticking, and they need Clementine's help to find the next Moonbow Crystal! She agrees, but only after the girls have some fun! Will the Shimmers be able to restore Moonbow Beach before it’s too late?

With 4 crystals restored, the team is on a mission to find the remaining 3! But Sunny is struggling with being separated from the group. They know that the sooner they solve this puzzle, the sooner they can all work together again! But even after all 7 Moonbow Crystals are restored, Rainbow High is still trapped in a sad, blue gloom! What's going on? With the help of an unexpected guest, will they be able to uncover the secrets of the past and restore Rainbow World?

Iris' little sister, Astrid, started her own club in Rainbow World, bringing together all of the Littles to create their own adventures!

Astrid is showing the Littles Club around Rainbow World when they come across a still very green Moonbow Kingdom. Princess Marina and Rosetta are still struggling with some jealousy, and the Littles need to help them settle it!

Astrid is leading all the magic little fairies on a shimmering journey to Moonbow Beach to reunite them with their sisters! But even with the Moonbow Crystal fixed, Clementine is still acting super silly! They need to find the Shimmers to finally fix Rainbow World once and for all! Can Astrid and the little fairies find a way to restore everything?

Astrid has been holding onto a big secret: she knew where the Little Fairies' big sisters were this whole time! She just wanted friends and was afraid they'd leave Rainbow World if she told them the truth. Now, the Little Fairies face a huge decision. Can they come up with a brilliant plan that keeps them safe, and ensures their new friend Astrid isn't left alone?

Iris thinks the Desolation has returned! And the little sisters are missing! The Desolation drains the color from Rainbow World and turns friends into enemies. In order to fight it off, the girls have to find the Original Shimmers at the Crystal Palace. Can Skyler, Violet, Bella and Amaya get to the Original Shimmers and bring them back to Rainbow High to save their little sisters and Rainbow World before it's too late?

Bella, Amaya, Blush, and Opal portal jump to the Crystal Palace to find Whitney, who knows how to save Rainbow World! But first, the girls need to help her with her latest crystal art piece — The Crystal Conundrum! Can the girls solve the puzzle and convince Whitney to join them before the timer runs out?

Violet and her little sister Amethyst are on a mission to save Rainbow World! They’ve come to find Misty, one of the original Shimmers and the creator of their powerful magic rings. But Misty has been living a quiet life, focusing on her love for rutabaga wraps. With the Desolation threatening to drain all the color from their world, can Violet and Amethyst convince her to rejoin the team and find the other Shimmers?

Leilani is too busy designing the perfect looks and Skyler is worried that their friends are feeling left out because they don't have rings or a big mission to help. To make things right, Skyler wants to find a way to help Leilani with her inspiration and her friends with their new looks. Can they convince Leilani that fashion is more than just a dress and that her friends need her? Watch as they learn that with a little inspiration from their friends, they can take on any challenge!

When a mysterious orange gloom fills the sky, Iris warns of a new threat: Dark Sparkle Glow! A terrible misunderstanding leads to a broken Moonbow Crystal and an impossible choice. Now, the two teams of Shimmers are separated, trying to do what's right to save Rainbow World. Can they uncover the truth behind the Dark Sparkle Glow and work together again, or is this the end of their friendship and the beginning of the Desolation's reign?

Iris tricked the Shimmers, and now they are stuck in a dollhouse with no windows or doors! Can the girls rediscover the power of their friendship and the key to unlocking the portal, before it’s too late to save Rainbow World?

In this grand finale, the Shimmers discover that the problem isn't the Desolation, it's the Dark Sparkle Glow that Iris created out of sadness. With the help of a secret weapon, can the new Shimmers and the OG Shimmers put their differences aside and work together to save Iris and Rainbow World?