The Sky's The Limit

The Lodgers discover that Cloudsdale and the Wonderbolts, or any other cloud-based civilization in Equestria, have all vanished without a trace, and all that's left are bird-like creatures that are virtually unstoppable as a united flock. Yet the heroes are able to outwit them and find out that they are coming from the land of Airquestria, where all things with wings were blessed with such by a power that could grant flight to virtually anyone even without wings. Now, this power is sought after by The Wind King, another family member of the Storm King only related as a half-brother, whose silly dreams of wanting to fly have turned him into one who wants to use that power for evil in the name of his dying family. Thus, with help from the local protectors, The Airquestrian Angels, they must stop him from doing so.