Life seems to be finally turning out right in so many ways for the ponies of Ponyville. Peace and happiness have become the norm. Until ponies start to vanish. (If you're a lazy reader, skip to the last paragraph of the summary)
Rumble's finally managed to move on after Scootaloo broke up with him. He's convinced himself he's okay now, that everything is fine. But when Scoots is counted among the missing, he knows he can't just stand idly by wondering about her fate.
Diamond Tiara's been doing her best to hide from the community that her family's in deep debt; but now her father's made a big sale, and it looks like she'll be able to go skiing in the Crystal Mountains with Silver Spoon's family this year. But then her best and only friend goes missing.
Snails has been training among the royal guard for the past five months, training his body and mind to become so much more than he was. He returns home ready to rest peacefully with his family and reunite with old friends. But with his huge heart and new found sense of justice, when he learns about the disappearances, he starts a search of his own.
Twist has finally got the job of her dreams, working full time in Sugarcube Corner with her idol and newfound friend Pinkie Pie. But when her hero goes missing, the workaholic knows there's nothing she can do; she's too weak, too useless. But she seems to be noticing clues others miss, and it's making some of the others suspect her for having a hand in the disappearances.
Dinky's just relieved that her mom has finally begun to recover from a long winded depression, glad to see that maybe her life is going to be normal. But when her mom is kidnapped by a mysterious pony who looks a good frightening bit like the boy she has a crush on, her world begins to shatter.
Five unlikely allies find their destinies inseparably bound; despite their differences, it seems that the only way to save their loved ones might be to set such things aside. It seems only they can unweave the mystery and save the ones who matter most to them. Falling in and out of love, betrayal and secrets, truths and lies that change everything; but to the five ponies, on thing becomes glaringly obvious. Any fool can be happy.