The movie had started out with a young Celestia and Luna working at a tapioca pudding as slaves for the evil Grandfather.They however were sick of working for him and rebelled against him.He however was furious and wanted to punish them, but was blasted away by the time he reached the count of zero.33 years later, Grandfather would get his revenge on Celestia and Luna and give them another chance.After fightning away some villains, Grandfather was reawakened by Luna, however Grandfather shunned her and scared her off for good.After doing so, he got to work transforming the villianous and non villainous ponies.Trixie wanted to leave, however before she could Grandfather got in her path and held her up, transforming the blue pony into an old-aged version of herself.After her transformation, she grabbed Gilda and infected her with her touch, soon followed by Iron Will, Flim and Flam, Sunset Shimmer, Queen Chrysalis, Discord, Lightning Dust, The Diamond Dogs, Braeburn, Dr.Whooves, Babs Seed, Big Macintosh, Octavia, Derpy Hooves, Applebloom, Scootaloo, Sweetie Belle, Rainbow Dash, Cheerilee, Carrot Top, Berry Punch, Pina Colada, Cadence, Zecora, Shining Armor, Mayor
Mare, Sapphire Shores, Snips, Snails, Daring Do, Photo Finish, Hoity Toity, Vinyl Scratch, Spitfire, Soarin, Prince Blueblood, and Fancy Pants.Go forth..Find the ones known as Celestia and Luna
who wronged me so many years ago.said Grandfather, commanding his senior citi zombie army to transform the last
of the mane six.Twilight Sparkle was immune to Grandfather's
touch and her friends Rarity, Fluttershy, Spike, Pinkie Pie, and
Applejack had escaped to avoid ge.ing transformed by
Grandfather.Twilight Sparkle realized that in order to defeat Grandfather, she had to rely on the help of Luna and Celestia to do so.Later with Celestia, both her and Twilight arrived at the house of Luna to warn Luna of Grandfather's arrival.After some careful convicing, Luna and Celestia went out to fight Grandfather.I AM VERY VERY VERY VERY ANGRY!!!!snapped Luna at Grandfather, surprising the dark black villain, however he was not intimidated by her temper.After this, she went back inside, leaving Celestia to fight Grandfather on her own.However, like Luna and Twilight, she too was immune to being infected by Grandfather's touch.Do you really think you can defeat me?asked Grandfather.At that very moment, Twilight was setting a course for a moonbase to crash directly into Grandfather, but not before fighting off some senior citi zombified versions of Spike, Fluttershy, Rainbow Dash, Pinkie Pie, Rarity, and Applejack.Before they could attack Twilight, a dark blue blast of magic made them back up slowly.Luna!said a surprised Twilight.You don't think I'd let you fight these guys by yourself, did you?asked Luna.Dost thou want a piece of me?asked Luna, challenging them to a six on one fight.Pinkie Pie and Fluttershy charged from two different angles, however Luna tricked them into running into each other.Rarity was ready to jump at Luna, only to be blasted away by Luna.Applejack, Rainbow Dash, and Spike had seen enough, but they too got knocked out when they all ran into each other.After they saw how powerful Luna was when facing six opponents, they retreated, allowing Twilight to defeat Grandfather by crushing with the moonbase.On earth, Celestia's hooves were getting wrinkly due to her ongoing fight with Grandfather.I just hope we can make it.said Twilight as the moonbase sped towards earth.Suddenly before he knew what was going on, the giant moonbase crushed Grandfather.Did we defeat him?asked Twilight.Nope!said Grandfather emerging from the rubble without a scratch.Twilight, Celestia, are thou ready to defeat Grandfather?asked Luna.Yes!they replied at the same time.Good.Then let's get to work finishing something I never finished.said Luna as all three of them used their magic to defeat the powerful dark villain, who although he was all powerful wasn't feeling so powerful when he got overpowered by the combined efforts of Celestia, Luna, and Twilight's magic.