Nick Crane explores how the remarkable history of Guernsey reveals both the
risks and rewards of invasion. What will Nick discover as he opens up a German
bunker that has been sealed since the end of the war? Nick also hears very
different stories of the occupation from two survivors; a girl evacuated to
England who became a pen-pal of Eleanor Roosevelt, and a boy left on Guernsey
who played dangerous pranks on the invading German army. Nick also revisits the
Napoleonic wars and learns how the islanders turned threat of invasion into a
money-making opportunity - the Guernsey privateers.

Tessa Dunlop visits Norfolk to relive the forgotten zeppelin blitz on Britain
during the First World War, which began at Great Yarmouth in January 1915 when
the first Britons were killed in an air raid. Tessa explores how we had to
invent the aircraft carrier, and the flaming 'incendiary' bullet to foil the
deadly aerial invaders. Tessa recreates the astonishing dogfight that brought
the Blitz to an end in 1918, when pilot Egbert Cadbury, heir to the famous
chocolate empire, shot down the fearsome 'Super Zeppelin'.

Ruth Goodman joins the friendly invasion of the Isle of Man by thousands of
bikers for the annual TT races. How did this small island become home to the
most dangerous road race on earth? Ruth discovers that the answer lies with the
introduction of speed limits on British roads over a century ago.

On a tiny rocky outcrop in seas off western Scotland, Andy Torbet encounters
remarkable animal invaders - water voles who are usually confined to mainland
Britain. The Coast team also visits the remote Scottish isle of Stroma, which
was abandoned following the invasion of the modern world.