One and Two hear a sound. They follow the yellow block-printed arrows. They see what they think is Four, but it's only a drawing. They enter a new stampoline park. Numberblocks are bounced off trampolines and land on paper to create block prints.
Two, Three, Four, and Five make different shapes. One is only a one block. Three tells her she's forgetting something. She yells "BOO!", causing Four to split into four Ones.
Three says every big shape is made up of lots of little ones, so lots of little Ones can make any big shape.
One sees a blank paper and stamps one block print, two one block prints, three one block prints, four one block prints, and five one block prints. Three draws the Numberblocks' faces and numbers on the prints.
To celebrate the grand opening of the park, the Numberblocks stamp themselves on a black screen. They've stamped a portrait of all five Numberblocks.
Trivia
The song "1812 Overture" plays in the grand finale.
A farting noise is heard when One hits the paper on her stampoline.
Goofs
In Four's vertical form, his face is different than it usually is, being located on 2 of his blocks instead of his top block.
When Three says "BOO!", Four's legs become detached from his body.
The painting has white when there is no white pads
