After learning all about the moon from "Buzz" Three, Four decides to build a spaceship and go there himself. The others join in the spaceship they made, but their finished contraption won't go and lift off the ground. Four overcomes his disappointment, realizing that they still had fun, and learned a lot along the way.
Season 1
Season 2
Season 3
Ear Spy Bang! Zoom! To The Moon! High Noon The Winning Streak All's Quiet on the Monster Front Nightmare on Chestnut Street No Place Like Home Guys and Dolls Ahoy, Me Monsters A Pony Tale The Monster Trash The Bad Hop A Five-y Tale The Big Store A Clean Sweep The Two who Cried Ouch! Dinner for Breakfast Drip, Drip, Drip! I'm Telling Voyage to the Bottom of the Cereal Box The Nose Knows Gone But not Four-Gotten My Favorite Crustacean Pennies for Seven The Bad Word Don't Pass Go And Baby Makes Eight These Are Our Lives!
Ear Spy Bang! Zoom! To The Moon! High Noon The Winning Streak All's Quiet on the Monster Front Nightmare on Chestnut Street No Place Like Home Guys and Dolls Ahoy, Me Monsters A Pony Tale The Monster Trash The Bad Hop A Five-y Tale The Big Store A Clean Sweep The Two who Cried Ouch! Dinner for Breakfast Drip, Drip, Drip! I'm Telling Voyage to the Bottom of the Cereal Box The Nose Knows Gone But not Four-Gotten My Favorite Crustacean Pennies for Seven The Bad Word Don't Pass Go And Baby Makes Eight These Are Our Lives!