Three months after "A Canterlot Wedding," Queen Chrysalis finds that her subjects are starving, so she sets off with them to return to Equestria and alter the changelings' way of life forever.
Three Equestrian foals venture into the Everfree Forest on a mission from Roxie, an imaginary pony that is aquainted with one of the three. Will they be able to survive what awaits them when they go into the dark forest?