 A force of twelve hundred British soldiers is now marooned on the nearby island of Kheros (another variation of the island Keros, which is situated to the west of Amorgos) and the Royal Navy is planning to send ships to rescue them.The heavy radar-controlled guns command the only deepwater channel that ships can use and must be silenced at all costs.Commando attacks have failed and after a bombardment by B-24 Liberator bombers fails to destroy the guns, Captain James Jensen RN, Chief of Operations for SOE in Cairo, decides to launch a desperate last-ditch attempt which he has already planned in case the bombing is unsuccessful.