Sooty and his pals play with a toy telephone they've made out of two old baked bean cans and a piece of string. Matthew shows Sooty, Sweep and Soo the latest high tech cellular radio phone he has been sent on a free trial and they have fun ringing up a number for horoscopes and one for a recipe line. Then they receive a second cellular phone in the post. Sweep goes to buy a tin of spaghetti for Matthew's lunch, but he forgets whether he has to get a large tin or a small tin so phones up. Soo then phones Matthew. Sooty finds another cellular phone by the front door and Matthew discovers he's been sent a dozen phones by mistake. Matt decides to return all the cellular phones, so he and Sooty take them back to the factory from where they came from, but Matthew can't remember the address so calls Soo to ask her. While doing so, a group of children gather to watch and Matthew lets some of the boys and girls phone their mums up with the radio phone. Later, back home, Matthew opens a gift that the manager of the factory gave him for returning all the radio phones which were sent in error. Matthew is very happy when he sees the gift is a new cellular radio phone.