Back at the Barnyard S02 E47 Pig of the Mole People

Pig's mole subjects (from when he was Emperor of the Mole People for 45 minutes) have sought him out to return as their Emperor and defend them from Eric the Terrible, a verbally abusive worm and with the mole people around the barnyard, they can't get Pig to hang out with them because they keep shocking them when they are near Pig.