In the gym, Three is announcing a "festival" related to jumping through a megaphone, but Six points out that it isn't a festival as there is no audience. Three thinks it can still be called a festival and reveals she has put up flags. Six tells One and Two the rules of the game: jump to the number six on a mat. Three asks (still through the megaphone) if they can jump as many times as they want, and Six affirms (after telling her not to always be the announcer).
One is first and she jumps one square at a time, obviously taking six jumps. Two jumps two squares at a time, so he takes three jumps. Three, following the trend of jumping the number of squares that matches your number/age, jumps in lots of three and thereby jumps twice. Finally, Six decides to try it in one go and succeeds.
The alarm sounds, so they (except, of course, for One and Two) go to the control room where an agent calls in with some news: at a holiday club, a die has a blank side. Four and Six use the process of elimination to conclude that the six is missing from the die.
Six is launched and lands in the very classroom the trouble is at. Then, a ladder also disappears. The agents suggest counting how many steps the woman climbing the ladder took, and sure enough, she took six steps. Five sees six paints, which disappear, as do the six points of a paper star. Then, a blob of green slime is noticed on the design the paper stars were on, signifying the Problem Blob as the culprit, and as if on cue, he appears.
The Numberjacks send brain gain to get the sixes back, but the paints don't align, the star points don't go onto the stars, and the ladder woman jumps up and down the ladder instead of walking up it normally.
Five imagines the blob causing a cut-up chocolate bar to join back together, an ant to have all its legs on one side, and a shoe to have all its lace-holes on one side.
Then, everyone realises something: there're six children! One boy gets blobbed, and that makes everyone disappear. Three makes brain gain to bring the kids back and it works, but they're side-by-side and not in pairs like before. Then, they suddenly separate, then group themselves into two threes.
Three makes brain gain to make the kids into three pairs again, the paints go back to being two lots of three, and the dots to reappear on the die. She then fixes the ladder so the woman can ascend it properly again, fixes the paper stars, and makes the Problem Blob jump six miles.
Six comes back and they do the recap. Then, Three tries to get Zero to do the "jumping to six" thing, but he doesn't jump— he just twitches instead while she counts his twitches. Six asks the viewers to look for things that come in sixes.
This episode provides examples of
- Brainy Baby: Downplayed. One, a one-year-old, says the sentence, "I'm only a little number", which is slightly advanced for her age but not unheard of.
- Chewing the Scenery: As a result of having a hard-to-tie shoe, the imaginary boy cries.
- Festival Episode: The jumping seen at the beginning is considered a festival by Three. Additionally, all of the problems occur within the same holiday camp festival.
- Green Is Gross: The children say, "Ewww!" as the result of the boy being blobbed with green slime.
- Oh, Crap!: Six suddenly looks worried and says, "Oh no!" upon realising there are six kids.
- Speak in Unison: When the boy gets blobbed, his classmates say, "Ewww!" in unison.
- Would Hit a Girl: Out of the six kids that the Problem Blob made disappear, three of them were girls.
- Would Hurt a Child: Exaggerated for the Problem Blob, who casually makes six kids disappear into oblivion.
