When a reformed raincloud teams up with a shipwrecked sea-postman and a magic walrus, the three form the Middlemost Post — the wackiest and most loveable postal service on Mt. Middlemost.
Parker, Angus and Russell become obsessed with doing challenges.
When Parker receives a package for the first time, the cloud decides not to open it.
Parker, Russell and Angus make a new friend.
Lily tells the audience the top things to do on Mt. Middlemost.
Quick advertisements that give background on the Middlemost Post crew and Lily's Somewhere Store
Parker takes a new resident on a whirlwind tour around the mountain.
