After Dennis and Walter mess up a science experiment, De Testa decides the boys must each live the other's life for a day. Show more
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After Dennis and Walter mess up a science experiment, De Testa decides the boys must each live the other's life for a day. Show more
CBBC is the BBC's multiplatform offering for 6-12 year olds bringing the very best drama, entertainment and factual programmes to its young viewers.
