This informational programme follows the British Army in Aden (Yemen) during the state of emergency in 1964. Aden is one of the last outposts of the British Empire and a strategic part of the Arabian Gulf guarding access to the trade routes that flow through the Suez Canal. The British colony has become a hotbed of insurgency, and the film follows British troops as they try to keep order in an increasingly violent mountainous region from where the insurgents regularly attack the Port area.