A little block falls from the sky and learns about the number one.

After discovering it's difficult to play tennis alone, One meets another One; together, they learn about adding and join forces to make Two.

Two finds a pair of magic dancing shoes and sings about things that belong in pairs.

Three arrives with a bang to sing and dance to a song about her favorite number; one, two and three, everybody look at me!

Three performs magic tricks with apples.

Numberblock Four arrives on the block, ready to spread the word about the number four and how much he loves to be square.