Stop-motion preschool programme about the adventures of four inquisitive Twirlywoos. The Twirlywoos are at a gym hall where they watch a gymnast practising a routine on a balance beam. When the gymnast leaves, Toodloo is eager to try it out and leaps up on the beam, performing a gymnastic routine. Chickedy and Chick also try to balance on the beam - they run along it really fast, holding hands to steady themselves. Next it's Great Big Hoo, who finds it difficult and wobbles around, nearly falling off a few times. The others are at the end of the beam encouraging Great Big Hoo along it. Suddenly the gymnast comes back and so Great Big Hoo makes a run for it, getting all the way to the end of the beam and knocking into the others! They fall into the basin of chalk dust that the gymnasts use to help their grip, and as the hooter sounds, they fly away, creating a big cloud of chalk which surprises the gymnast as she comes back into the room.

Back in the boat, a big wave washes Peekaboo and a collection of pebbles out of the hole in the wall and they are scattered all across the boat floor. The Twirlywoos return, but Peekaboo doesn't have enough time to get back into the hole so hides in amongst the pebbles. When the Twirlywoos drop into the boat they land on the pebbles, where they struggle to keep their balance. Chickedy and Chick jump from pebble to pebble like stepping stones, until they unwittingly land on top of Peekaboo's shell. Peekaboo runs off with Chickedy and Chick balancing on top! They career around the boat crashing into the other pebbles, and into Great Big Hoo and Toodloo, ending up with everyone balanced precariously on top of Peekaboo! Show less