Sandbar, Ocellus, and Silverstream are acting weird after dipping into some red slime. The thing is, they're not the same ones Gallus, Smolder, or Yona know.
Applejack and Rainbow Dash ended up together in the main universe - through the portal, it was Applejack and Rarity. It's a fair question who made the right choice - from the sidelines, the other Rainbow and Rarity wonder if it was them.
Starlight and Sunset have the Trixies from the FIM and EQG universes meet up. Naturally, both Trixies have a competition to figure out which one of them is the Greatest and Most Powerful.
Rainbow Dash promised Scootaloo a Rainboom at the next Wonderbolts show but she's been hurt. Solution: bring in another Rainbow Dash to do it for her! Two problems: Spitfire isn't fooled, and nobody taught the human Dash how to do a Rainboom.
In order to finally beat Flim & Flam's game of ring toss, Twilight Sparkle received aid from an undefeated ring toss champion: her Equestrian counterpart.
Sunset Shimmer is deeply in love with Princess Twilight Sparkle and decides today is the day she's gonna confess! Unfortunately, some others have the same idea.