Pee-wee tries to entertain himself and his playhouse friends during a rainy day, by playing games, making hot chocolate, telling a ghost story, watching cartoons and even making prank phone calls, but eventually he suffers from "playhouse fever" before wishing away the rainy day.
A giant one-eyed monster is on the loose and appears in the Playhouse, scaring everyone! But after Pee-wee makes the monster a snack and Jambi grants Pee-wee's wish to understand the monster, the whole gang has a new friend! They even play a game of golf.
Randy steals Mrs. Steve's crummy crab apples from her tree, and Mrs. Steve needs Pee-wee's help in finding him. Then, Pee-wee plays the hands game with Tito, and "there" are enough apples for everyone at snack time.
It's party time at the Playhouse, and you're invited! The whole gang is here: Cowboy Curtis, Captain Carl, Reba the Mail Lady, and the lovely Miss Yvonne! You'll want to join in the Hokey-Pokey, scream when you hear the secret word ("this"), and play Pin-the-Tail-on-the-Conky!