It's 1939, and three ten-year-old girls meet on a station platform.
Imogen, Rita and Debby all missed the original evacuation and now the
authorities are finding it difficult to place them. When Auntie and her
niece, Jill, who run the Canary and Linnet Public House, offer to take
them in, the billeting officer is greatly relieved. The countryside is
heaven to the three little townies, especially after they meet Woody and
Josh, also evacuees. They find that by climbing to the top of the
biggest tree in the beech wood they have a perfect bird's-eye view of
the nearest RAF station and are able to watch the comings and goings of
the young fighter pilots as the Battle of Britain rages. Then they find
an injured flier and the war becomes a stark reality.