Not long after the defeat of Opaline, Grandma Figgy comes to Maretime Bay to have a talk with Phyllis Cloverleaf. In particular, she wants to address Phyilis' seclusion and lack of involvement in the changes happening in Equestria.
Sprout doesn't really care for the holiday of Winter Wishday, and voices his displeasure openly. Little does he know that his friends are opting to stage an intervention. Or that one night he shall be visited by some unusual guests.
(Takes place right after "A New Generation".) As magic returns to Equestria, Phyllis decides to have a long overdue chat with Sunny Starscout. In particular, she wants to apologize for the way she's treated the new alicorn.
Izzy takes it upon herself to cheer up Sprout and make him feel welcome and wanted again. Sprout isn't in the mood, still distrustful of pegasi and unicorns. But Izzy isn't the type of pony who takes "No" for an answer.
Little Sprout ropes Little Hitch and Little Sunny into an attempt to find his missing mommy. Little do the three little ponies suspect what this innocent adventure will lead to.