A renegade commander must take matters into his own hands in this epic First World War thriller. Summer, 1917: Britain is losing the war against the deadly German U-boats. After close fought action, Commander David Cochrane Smith uncovers what he believes is a deadly plot against Britain from a dying German sailor. Code-named Swordbearer, it could turn the tide of the war in Germany's favour. But, already under suspicion, his warnings...