Halo: Season 2

Season overview

Role: Meticulous television and film archivist.
Task: Produce a JSON object for "Halo" Season 2.
Keys: overview (160-220 word summary), primer (array of exactly 4 concise bullet points).
Constraints: Use ONLY provided synopsis and sources. No invented facts. No markdown/asterisks/headings/bullets in the text (except the JSON array structure). Output valid JSON only.
Content Requirements:
overview: Factual 160-220 word summary of the season's narrative arc.
primer: 4 concise bullet points summarizing essential previous lore, character positions, and stakes.
TMDB Synopsis: Season 2 features Master Chief John-117 leading elite Spartans against the Covenant. Following a shocking event on a desolate planet, John feels the war is changing. He risks everything to prove the Covenant is preparing to attack humanity's greatest stronghold. He embarks on a journey to find the Halo, which is the key to humankind's salvation or extinction.
Source 1: 26th-century conflict between humanity and an alien threat.
Source 2: Created by Steven Kane, Kyle Killen. Stars Pablo Schreiber, Shabana Azmi, Natascha McElhone, Natasha Culzac. Galaxy on the brink of destruction.
Source 3: Epic 26th-century conflict, personal stories, action, adventure.
Source 4: Franchise started in 2001 with video game.
Source 5: Discusses central mystery/character interest.
Overview Construction:
Master Chief John-117 leads a team of elite Spartans in a conflict against the Covenant, an alien threat. Set during an epic 26th-century war between humanity and this alien force, the season follows John after a shocking event occurs on a desolate planet. This event leads John to believe that the nature of the war is about to change. Driven by this intuition, he risks everything to prove a claim that others refuse to believe: that the Covenant is preparing an attack on humanity's greatest stronghold. As the galaxy sits on the brink of destruction, John begins a journey to locate the Halo. This object represents a critical turning point for the species, serving as either the key to humankind's salvation or the cause of its total extinction. The narrative weaves personal stories with action and adventure within a richly imagined vision of the future. (Word count check: ~155 words. Need to expand slightly to hit 160-220 range).
Revised Overview:
In the second season