Alphablock U needs the other vowels' help to find the confidence to join in their acrobatic act. They offer him a crash MAT and a safety NET, but he's still uncertain. A special KIT to wear doesn't help, but when Alphablock O's suggestion of a HOP transforms U into a hopping bunny, he declares himself unstoppable. He overshoots his mark, but P is on hand to take him UP to his place at the top of the vowels' tower. In the grand finale, the vowels demonstrate all the things that vowels can do.

Alphablocks A and B must race around Alphaland before sunset. After a good start, they run out of breath and need to take a taxi CAB. A puncture causes them to transfer to a BUS. They reach the beach, then they take an underwater SUB to cross the bay. The ground is rocky on the other side, so they ride a YAK up a mountain to within sight of the finishing line. The yak stops because it is hungry. Will they make it in time? Yes, if they RUN! ?