When they find a musical rainbow, the Alphablocks sing and dance their way to a multicoloured land, but how can they cross the rainbow river to get to the pot of gold?

This episode has fun with a host of letters and the words wet, run, fun, sun, dog, fog and log.

The alphabet song should be as easy as A, B, C for the Alphablocks, right? Not exactly: it takes a few tries, a lot of fun and a magical bouncing dot to get them from A to Z. 

This episode has fun with the whole alphabet and their letter names.