Twin baby foals come for a temporary visit at Horseland while their mother recuperates. The kids lavish much of their attention on the adorable foals, making all the horses, especially Calypso and Aztec, jealous.

a heavy drought has hit Horseland and the surrounding countryside, and water is scarce. Chloe doesn't seem to care... until she's led to believe that she used up the last drop!

The Horseland gang discovers that their beloved meadow may be used as a construction sight, and vow to stop the development.

Over the course of a winter, the beloved barn cat of Horseland, Mosey, is becoming very old and sick. Seen through flashbacks, the tale unfolds of his increasing illness and eventual death. All the riders, animals, and horses, especially Sarah, are heartbroken by his loss, and have trouble coming to terms with it.

The girls are given the task of learning lateral dressage and Sarah is especially determined to learn it. Rather than take it slow, she pushes Scarlet and herself to the maximum and ends up spraining Scarlet's leg during practice one day. Convinced that Scarlet is unable to learn it, Sarah decides to give up her determination; but when her and her friends are stranded in the middle of a river during a fierce thunderstorm, Sarah realizes that her determination may be the only thing that can save them.

Alma accuses Molly of spreading malicious gossip about Sarah, even though it is not true. The friends become divided, and give Molly the silent treatment until the truth is revealed.

Sarah, Alma, Molly, and Zoey are assigned to doing musical kur for an upcoming competition, but Calypso struggles with learning the routine. Worried they will mess up during the competition and embarrass her and Pepper, Zoey attempts to get Molly to drop out by convincing her that Sarah and Alma plan to drop her from the routine anyway. Unfortunately, Molly takes it as a sign nobody wants her around Horseland anymore and plans to leave the ranch forever. Then Sarah and Alma find out what Zoey did, and even though the show is about to start, they go find her, compete in the show (in which Calypso finally learns the routine), and teach Zoey a lesson.

Bailey is picked to be lead rider for an upcoming show that Horseland is performing. Everything runs smoothly until Bailey yells at Alma for constantly messing up and continues to bark orders at everyone like a dictator. When a storm hits, the kids quit for the night, but Alma continues to practice so she won't upset Bailey. Unfortunately, the storm spooks Button which causes her to run off with Alma in tow. Bailey and Sarah must now work together to go find her, and Bailey has to figure out how to lead a scared Alma and Button back to Horseland without scaring them any further.

Chloe lies to everyone about jumping over a parallel oxer so she can impress Bailey. Her fib succeeds in impressing him, but it soon escalates to the point where reporters come to Horseland for a meet to watch her make the jump, since it is rare that such a young rider can perform it. Chloe decides to practice the jump the night before the competition, but Chili sprains his leg during the process. The next day at the meet, Chloe must either come clean with her lie, or attempt another jump and endanger the lives of both her and Chili.

A once-wild horse named Puma comes to Horseland, and talks of his life in the wild. This makes Aztec also want to run away and be free. He sneaks away at night, but comes to find out that life away from civilization is a lot harder than he expected. Meanwhile, Bailey is distraught with worry for his beloved horse. Eventually, the two are reunited, and Aztec decides that he prefers life at Horseland. Meanwhile Sarah is at Stand Hope riding school but later decides to stay with her friends.

The Horseland gang goes on a trip to France for a riding exhibition. Sarah's father encourages her to befriend the daughter of one of his friends, an Indian girl named Simbala. Both girls worry that the other won't like them, and a few mishaps seem to confirm this. When the pair falls into an underground cave, though, they discover that they are more alike than they are different.

When a new boy, Chase, visits Sarah at Horseland, the other riders think that he's her boyfriend. They soon discover, though, that Chase is Sarah's cousin. He helps them prepare for an upcoming dressage show, but refuses to read direction. Chloe and Zoey think that he is illiterate, but it is revealed that he is, instead, dyslexic, as is Will.

Zoey finds an injured bluebird in the Horseland Greenhouse. She tries to nurture it back to health, and forms a bond with it. Despite her attachment to the bird, though, she fails to see that keeping such a bird caged is bad for a wild animal.

n equestrian fashion designer comes to Horseland, and the gang is thrilled to model for the subsequent photo shoot. However, the clothes are impractical and too dangerous to ride in. The kids must speak up before someone gets hurt.

Alma,Chloe and Zoey strike a deal: Alma will be more competitive during an upcoming show jumping competition if Chloe and Zoey will be nice. When Alma has to face a rude super-competitive rider from Horseland's bitter rival, Stanhope Academy, though, she's not sure that being untrue to herself is such a good thing.

A princess, Linnea, and her assistant come to ride for a day at Horseland. Chloe and Zoey want to make a socially advantageous friendship with the princess, but end up mistaking her for her assistant!

When Molly takes a bad fall, she puts off getting back in the saddle again. When Sarahs horse Scarlet comes down with a potentially deadly illness, only Molly is available to ride to get help, and she must finally face her fears.

After Pepper is injured during a competition, Zoey turns her back on her and starts avoiding her after hearing about a horse having to be put down after it is injured. Pepper becomes depressed and unmotivated to get better and ride again when Zoey stops coming by to see her, which only adds to Zoey's fears about losing her. Zoey then gets a new horse to ride, because she thought Pepper was goig to die. It's up to the rest of the Horseland gang to reunite both Zoey and Pepper before the two give up on each other, and their lives at Horseland, for good.

An elderly horse teaches Chili about a horse's innate herd instinct, a form of magic, and how it is beneficial for the whole group of horses.

Bailey finds a lost puppy, Cubby, and decides to adopt him. However, both Alma and Shep begin to act abnormally and, as usual, something's afoot.