Rarity, Twilight Sparkle, and Applejack have happily settled into their herd with Spike over a number of weeks, but Pinkie has discovered their secret, and even Rainbow Dash has started to suspect something is up. How will they react when the truth comes to light?

Meanwhile a supposedly mellowed out Discord continues to help Tree Hugger as they build Fluttershy's confidence, making her take risks she'd normally never dare. However, this pushes him to feel envious of Spike, unable to easily be satisfied no matter what he's offered. What kind of mischief will be stir up to sate himself? And will it threaten to unravel what the herd have carefully built?