by Penny Casdagli
Harold Threadgall and his Mum win first prize in a cornflakes competition - the holiday of a lifetime aboard the SS Adventurer. But the holiday doesn't turn out as planned and Harold soon finds himself in very deep water!
Discover 11,128,835 listings and 281,546 playable programmes from the BBC
by Penny Casdagli
Harold Threadgall and his Mum win first prize in a cornflakes competition - the holiday of a lifetime aboard the SS Adventurer. But the holiday doesn't turn out as planned and Harold soon finds himself in very deep water!