The Defence of Inchkeith. The tiny island of Inchkeith, in the middle of the Firth of Forth on Scotland's east coast, has faced many military threats from the 16th century up to the Second World War. Tony Pollard and Neil Oliver launch an amphibious invasion in order to carry out an investigation into what lies behind the success of its fortifications.
Director Paul Ratcliffe ; Executive producer Pat Llewellyn