In the 26th Century, the prolonged war between humanity and the fanatical alien alliance the Covenant has ended with a tenuous treaty. Despite the ceasefire, Earth's outer colonies remain vulnerable to the Covenant's covert intrusions. The ONI - Office of Naval Intelligence has been tasked with counterintelligence to beat the Covenant. In Planet Sedra, Commander Jameson Locke and his team witness a Covenant's spacecraft and a Zealot Elite warrior disembarks with a bomb. They unsuccessfully try to stop the alien that explodes the bomb in a mall. They realize that it is a biological attack with an element fatal to humans. Sedran Commander Aiken captures the middleman Axl that tells that the element is obtained from Alpha Halo, where the day longs 16 h and the temperature in the sunlight reaches 482o C. Aiken, Locke and his team head to Halo in the spacecraft Condor with pilot Macer carrying a Havoc weapon to destroy the place. On the arrival, they find two terrorists but are trapped in Halo by weird worms that are attracted by technology. And in five hours the sun will rise. 你跟别人不一样，你想取代他。士兵的意义。洛克崛起。没有任何科学根据和科学逻辑。对于我这个对HALO不太了解的人来说，这就是垃圾。一部心理科幻片。好大的题材，渺小的作品！。 美剧《光晕：夜幕降临》剧情是紧接《Halo4》和《Halo5》，其中游戏人物Jameson Locke(Mike Colter饰演)将继续扮演核心角色，他即是一个“传奇的赏金猎人”，同时也是美国海军情报局的特工。 在预告片中，Jameson Locke和他的团队陷入到一场有预谋的生物攻击之中，在那里他们很快发现了这个阴谋，他们随后被带到了一艘远古的飞行器里。在那里他们被迫“为生存而战，并对一切事物保持猜疑”，最终在忠诚和生存之间做出抉择。 最后微软也表示，这部美剧《光环：夜幕降临》将与《光晕》士官长典藏版同期上映，预计从11月11日开播。
