Something is wrong with Rainbow Dash and Applejack, and Twilight Sparkle is determined to figure it out. But not even the Princess of Friendship is prepared for the possibility that, sometimes, love alone isn't enough to keep a marriage going strong.
In order to escape one of Starlight Glimmer's alternate timelines, Twilight must find a way to convince this timeline's Applejack to let her go home. However, this version of Applejack isn't keen to let go of the last thing that matters to her...
Twilight accidentally casts a spell on Applejack that forces her to talk nonstop. Now AJ's in danger of admitting her true feelings for Rainbow Dash to the whole world - and worst of all, to Rainbow Dash herself.
When Applejack and Rainbow are sent to the Equestria Girls universe to solve a friendship problem, it seems the ones with the problem to solve are...themselves?