Twilight was enjoying a normal day in Ponyville when she suddenly fell for a cruel prank by the two mischief makers everyone is familiar with. Except this time, Twi decides to strike back with her scariest and best prank she's ever done.

Rainbow Dash discovers a flier mentioning a competition where fighters from different universes can be found. She informs the rest of the mane 6 about the competition and all of them agree to join it for their own reasons, however not all 6 of them have a good time. The story focuses on Pinkie Pie and her horrible struggles against her friends as well as the other universe's greatest fighters in boxing and wrestling matches. Can she find a way to win? or will she continue to get demolished by her opponent?