El Dorado is a city few ordinary ponies know. It's said that whoever goes there can find success and have their dreams come true, and find wonders noone can find anywhere else. For a price, or so the rumours say.

Spike has gone missing, and the sole clue points to El Dorado, and Pinkamena has taken it upon herself to find him and solve the mystery of El Dorado.

But ponies who try to uncover the darkness hidden beneath the shine of the City of Gold tend to never be seen again...