Misty continues to work undercover as the Mane 5 and Team Sonic's newest friend, although her loyalties may start to shift as she begins to see the true friendship she could have with these ponies. However, as Opaline and Eggman's endgame draws nearer, the fate of Equestria, Mobius, and the battle between good and evil may rest on Misty's shoulders. In the middle of this, some secrets come to light, some romances fly in the air... and some visitors from Mobius arrive to take Team Sonic back home.