Warning: may contain spoilers!
Twilight Sparkle, Applejack, Fluttershy, Pinkie Pie, Rarity, Rainbow Dash, Starlight Glimmer, DJ Pon-3, Princesses Celestia, Cadance and Luna and Zecora.
Equestria - a vast land where My Little Pony takes place.
Sophie is just an average My Little Pony fan who also likes drawing. She buys a magical pencil that brings her drawing of her own made up My Little Pony character, Honey Heart, and various other drawings to life. At the same time, the Mane Six, characters from her favourite TV show, My Little Pony: Friendship Is Magic, move in next door. There's a room themed to each pony's personality and they love to watch pony videos on the internet. Why? Because they are amazed by such a big fan community of course!
Each of the Mane Six keeps the Elements Of Harmony in Emergency Break Glasses, so when Sophie's town is under attack, they know what to do - when the elements touch, the ponies combine into one to form Crystal Glimmer.
When Friendship Is Magic premieres on TV, that's when the Mane Six move in next door to Sophie. At first, she is a bit nervous about meeting her idols, but Honey Heart gets her meeting and greeting with Twilight and her roommates. After a tour of their house, Sophie is invited to tea with the ponies, and when she gets home she tells her mum about them. The next day, Honey Heart is summoned by the Elements Of Harmony and transported to a realm ruled by Nightmare Moon, Princess Luna's evil form. Remembering what Twilight did in episodes 1 and 2, Honey dons her crown and chants out a magic word: "Friendship Is Magic" in reverse - and kills Nightmare Moon before ending up on top of Spike while he's watching a HotDiggedyDemon video about adult-oriented ponies.
Sophie meets the Cutie Mark Crusaders for the first time on her way to school, and they agree to come with her if they want to achieve their Cutie Marks. However, Honey Heart must keep them from being noticed by the teachers by drawing costumes for them to go undercover in.
Rainbow Dash flies out in a heavy storm and is blown away towards a barn, where she is trapped inside just as a tree falls, destroying it and sending her into a coma. Rainbow Dash is admitted to hospital, where she has a dream about discovering the Element Of Loyalty as a filly. She is then told by Princess Celestia that the barn the storm destroyed was Applejack's barn, and that she must do something about it - and fast. At once, Rainbow Dash wakes from her coma and races out of hospital, using the Element Of Loyalty to help repair Applejack's barn.
The ponies are framed for crimes they didn't commit, and on a mission to find out who did it, Pinkie discovers there are evil versions of the ponies that live on the other side of Twilight's magic mirror - Bad Applejack, Unkindshy, Hate Cake, Raspberrity and Rainbow Flap. Honey Heart, armed with Sophie's magic pen, goes through the mirror into the mixed up world where the evil ponies ran through, with chocolate fountains, strawberry trees and flying cows. She writes the evil five's names and then rubs them out, not only erasing these ponies, but also the entire world. She manages to escape through the mirror just in time, causing the mirror to shatter into tiny pieces.
Later, Twilight and her friends go on a long migration to the Crystal Empire to meet her brother Shining Armour and her foalsitter Princess Cadance. Honey Heart, Sophie and her best friend Gabby come along too, and Sophie draws a new pony friend for Gabby - Golly Gumdrops, a mentally unstable and childish green pony who wears a twirly hat.
On the journey, Spike dies of frostbite just as they reach the empire, and much to the girls' luck, Cadance uses a healing spell to bring him back to life. When he wakes, this results in a comedic awakening indeed.
Mr and Mrs Cake bake a giant cake a for special occasion, but Pinkie wants a piece immediately. She climbs the giant cake, but this results in it toppling over and landing on Applejack and Rainbow Dash, who try to rebuild the cake as fast as they can.
Pinkie Pie puts on a stage show at Sophie's school, and that's when the ponies are discovered by the students - Pinkie becomes popular, especially to the kindergarten students who beg for her to replace their teacher. Sophie becomes stunned, and tries to hide the fact.
Rainbow Dash reads a magic book which transports her into the jungle. She races to find a way out, dodging tigers, snakes and apes the Tarzan way, until Daring Do arrives and helps her along.
Honey Heart has a strange dream of her running through the Arctic, and a mysterious pony telling her that her friends need her help. Wearing nothing but the Elements Of Harmony on her head and heels, she races across the Arctic searching for the kidnapped ponies after she sees a ransom note on Twilight's sofa. Not wanting to end up like Spike, she battles the dangers of the Arctic, including a large crevasse and a bird nest swing, plus a snowstorm, until she enters a cave and sees the Mane Six trapped inside the ice walls. Using the combined power of the Elements Of Harmony, she melts away the ice and frees the Mane Six, getting them out of here before the cave collapses in.
Later, Twilight mysteriously disappears. Honey Heart relies on Sophie's help to draw a portal for her to jump through so she could save her. Through the portal, she sees Twilight take on the Friendship Trials, a brutal training session where she must overcome five challenges if she wants to become a princess. Honey Heart helps her along, and soon Twilight emerges in the real world as an alicorn, turning her into Princess Twilight Sparkle.
Pinkie really wants to save money for the new toy she's seen in the supermarket, and so tries out a handful of jobs which make her realize friends are more important than a super-exciting toy for party lovers.
Rainbow Dash is forced to leave the house after getting an invitation to become an honorary Wonderbolt at their mansion.
Twilight has to recite a spell to move the Crystal Empire away from a volcano that's violently erupting nearby, while Spike is forced to battle a horrendous lava monster threatening to wipe out the empire.
The friends discover Discord used to be a former game show host who has lost his sense of humor since his show, 'Magic Tactics' came off the air a few years ago. A sudden solar eclipse happens, sending the townspeople into a eternal slumber and a star falling out of the sky. Discord finds it, and uses it to power up a 'Test Your Strength Machine' to lead the ponies and the readers in an interactive quiz to stop the Eternal Eclipse. The power of the light of the star erases the eclipse and tears the moon and the sun apart.
Spike is adopted by a couple who become very abusive towards him. They don't give him any food, they make him do all the housework and they beat him up, only feeding him bread and water. Twilight is forced to attend a court trial to see who takes custody of Spike.
Twilight accidentally drops her magic necklace into the bath, causing the ponies to develop magical superpowers - just in time, as an evil serpent emerges and forces Sophie and Gabby to dance. The ponies dance with perfect rhythm and tune to turn the serpent back into a stone statue belonging to Holthorne Statue Park.
Honey Heart hosts a barbecue in the ponies' garden, but Spike accidentally knocks over a can of petrol and Honey flicks a match onto the ground, setting the ponies' house on fire. It crumbles to bits, and Sophie's house does too. All that remains is a magic music box and key. Twilight places the key into the lock, and it turns the crumbling ashes into a fabulous castle and a giant Barbie-style dreamhouse for Sophie and her family.
Pinkie falls into dull water, turning her into a boring pony with straight hair. The only way for the ponies to turn her back to normal is a bunch of Giggle Flowers.
The ponies' Cutie Marks go missing, and Honey Heart is the only one to dive deep into the undersea caves to the Cutie Mark Corridor located under the sea. Using a golden spike, she breaks the vault and frees all the Cutie Marks, causing her to emerge in a whirlpool of Cutie Marks.
Honey Heart is given a magical My Little Pony book that allows her to travel to a point in My Little Pony that'll allow her to change time. Just by helping the Mane Six defeat Nightmare Moon, she erases herself and the ponies from existence, ending up in a boring white realm named The Everealm. They discover the only way to get out is to recite a spell in the book - once they do, everything goes back the way it used to be.
Discord becomes a TV salesman, but Fluttershy refuses to let him take up the job and tries to get him back into his game show host form for 'Magic Tactics'.
Pinkie Pie becomes insane when she drinks a magic Crazy Juice bottle, and the other ponies place her into a straight jacket until they find a cure for her insanity.
There is an average day for the ponies: Rainbow Dash has a water balloon fight with Scootaloo and a few other young ponies, Applejack helps out at a juice factory, Fluttershy helps free a shy panda from captivity and Rarity sews a new dress.
TO BE CONTINUED...