Halo: Created by Steven Kane, Kyle Killen. With Pablo Schreiber, Natascha McElhone, Yerin Ha, Bokeem Woodbine. Aliens threaten human existence in an epic 26th-century showdown. TV series based on the video game ‘Halo’. Depicting an epic 26th-century conflict between humanity and an alien threat known as the Covenant, the series weaves deeply drawn personal stories with action, adventure and a richly imagined vision of the future.