A party of schoolchildren visit London to spend three crowded days in the capital. The adventure starts with a railway journey, and once in London new impressions are collected thick and fast - the streets, the parks, the museums, the shops, the hotel which becomes their temporary home, the Changing of the Guard, St. Paul's, the Tower of London - and, at night, the crowded pavements and the bright lights. There is time to visit London Airport and Windsor Castle and to travel by river launch to Greenwich and the Pool.