Three best friends. Two fateful events. One promise.

Rumble, Dinky, and Pipsqueak are three young foals. As they notice the fun and adventure the Cutie Mark Crusaders have, and the dangers they can overcome by protecting each other, they decide to form their own club. They start going on adventures of their own, making sure one another isn't put into harm's way. As they begin to grow, though, their memories of their own laughter and adventure begin to fade. Pipsqueak decides to try and renew their friendships. But as new bonds formed as the years went by, will the three ponies be able to hold on to their forgotten friendship, or will they learn that not all friendships last forever?