Fairy Tail (dub) Episode 82 -

The Exceeds realize their "mission" to kill Dragon Slayers was a lie; they were actually sent to Earth Land to be saved from Edolas' destruction.

Captures the overwhelming emotion of reuniting with her siblings, Mirajane and Elfman, after years of being presumed dead. Fairy Tail (Dub) Episode 82

Mystogan (Prince Jellal) stays behind to lead Edolas into a new age without magic. The Exceeds realize their "mission" to kill Dragon

Details on and how she ended up in Edolas Mirajane and Elfman