Aftermath: Population Zero investigates what would happen if every single person on Earth simply disappeared. Explore the interactive world without us.

空中浩劫（英文：Mayday、Air Crash Investigation或Air Emergency）是一个由加拿大的Cineflix公司所制作的纪录片节目，分别在世界各地的国家地理频道及Discovery频道播出。此节目主要介绍1970年代黑匣子发明之后所发生的近代重大航空事故。目前正在播出第十一季，第十二季中也正在计划中。在第三季时，有三集穿插铁道事故及航海事故（此三集在海外地区播出时未必归为空中浩劫系列，台湾地区国家地理频道将此三集列为“浩劫现场”系列）。

The small but immensely powerful Admiral Graf Spee was the pride of Hitler's naval fleet. Restricted to a limited size due to the impositions of the Treaty of Versailles, this 'pocket battleship' was still a formidable fighting force. It was faster than a battleship, and had firepower far beyond other ships of this size. It was responsible for the sinking of as many as nine Allied merchant vessels in the autumn of 1939 in the space of three months. Then, late in the year, the ship was ambushed off the coast of Uruguay by British cruisers determined to sink her. Faced with insurmountable odds, the ship's captain, Hans Langsdorff, opted to destroy his own vessel rather than capitulate to the enemy. Hitler's Lost Battleship retraces the events leading up to the ship's destruction. With high-end re-enactments, CGI reconstructions, and surprising revelations from naval researchers - all add up to shed new light on this fascinating episode in wartime history.