After the war the three heroes ended, life in Equestria become peacefull once again. The heroes are given a reward all war-torn soldiers deserve. A peacefull life with their love ones.
But after a message from an alternative Equestria about an iminate doom, Kay and Yuri, under orders by Captain Joshua Mills, are sent to the other Equestria for another gun blazing mission.
But can they get use to the other Equestria that doesn't know them? And when their weapons are seen as a threat to the other Equestria, can they earn the trust from the other Princess Celestia? And how will they cope with the other Fluttershy and Rarity which are not their wives?!