Twilight and Rarity have decided to try the sea faring life, and trying a spot of fishing. However, their down time may be cut short as they find themselves embroiled in the hunt for a mysterious treasure of Equestria's past and the vile crew of pirates seeking it. As the pair make a new friend during these dangerous times, they find they must both help their friend turn away from a dark path while also thwarting the plans of the villainous Captain Squirk.