This episode involves Dennis helping out a mareep herding family when two galactic grunts steal Kaylee's mareep herd it is up to him and his Prinplup to save them.
Galactic Grunt X2
Mareep[Kaylee's also a Part of an herd]
Mareep[Kaylee's Mother also a part of the herd
Scyther[Male Galactic Grunt's]
Golbat[Female Galactic Grunt's]