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.
In season two, Master Chief John-117 leads his team of elite Spartans against the alien threat known as the Covenant. In the wake of a shocking event on a desolate planet, John cannot shake the feeling that his war is about to change and risks everything to prove what no one else will believe – that the Covenant is preparing to attack humanity's greatest stronghold. With the galaxy on the brink, John embarks on a journey to find the key to humankind’s salvation, or its extinction: the Halo.
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