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Season guide

Hawaii Five-0: Season 10

22 episodes Premiered Sep 27, 2019 Updated Sep 25, 2026

Role: Meticulous television and film archivist. Task: Produce a JSON object for "Hawaii Five-0" Season 10. Constraints: Use ONLY provided SYNOPSIS and SOURCES. No invented titles, names, dates, counts, awards, ratings, box-office, viewership, or plot points. If a detail is not in the material, omit it. Write original, neutral, encyclopedic prose in plain text. No markdown, no asterisks, no headings, no bullet points

Previously on Hawaii Five-0

Season 10 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of Hawaii Five-0 Season 9.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.

Season overview

Role: Meticulous television and film archivist.
Task: Produce a JSON object for "Hawaii Five-0" Season 10.
Constraints:
Use ONLY provided SYNOPSIS and SOURCES.
No invented titles, names, dates, counts, awards, ratings, box-office, viewership, or plot points.
If a detail is not in the material, omit it.
Write original, neutral, encyclopedic prose in plain text.
No markdown, no asterisks, no headings, no bullet points in the prose.
Output MUST be valid JSON only.
JSON Keys:
overview: 160-220 word factual summary of the season's narrative arc.
primer: Array of exactly 4 concise bullet points summarizing essential previous lore, character positions, and stakes.
TMDB Synopsis: "The 10th season finds McGarrett and Five-0 reeling from the shots fired in HQ and who on the team was hit."
Source [1]: Steve McGarrett returns home to Oahu to find his father's killer. The governor offers him... (incomplete).
Source [2]: Stars Alex O'Loughlin and Scott Caan. Centers on a fictional special police major crimes task force operating at the behest of the governor of Hawaii.
Source [3]: American action crime TV series on CBS, airing since September 20, 2010.
Source [4]: Rating 60% (not needed for overview/primer).
Source [5]: Remake of the 1968-1980 series.
Overview: The 10th season of Hawaii Five-0 centers on the aftermath of a violent incident within the task force headquarters. Following shots being fired in the HQ, Steve McGarrett and the Five-0 team are left reeling. A primary concern for the group is determining who on the team was hit during the shooting. This season follows the fictional special police major crimes task force that operates at the behest of the governor of Hawaii. The series, which is a remake of the original series that aired from 1968 to 1980, continues the narrative of the team as they deal with the consequences of the attack. (Word count check: ~105 words. I need 160-220 words).
Wait, I must only use provided info. The provided info is extremely sparse for a 160-220 word overview.
Available info for Season 10: McGarrett

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Season 10 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 10 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 10: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

23%
77%
Mytharc (5): Crucial lore & season climaxes
Core (17): Character development & subplots
Side Quest (0): Standalone / filler
S10·E7 Core

Ka ʻiʻo (DNA)

Nov 8, 2019 · 43 min

When the CIA informs McGarrett that his mother has gone rogue on her undercover mission and may have killed her partner, Steve goes solo to Mexico to bring her home and prove her i

S10·E11 Core

Ka i ka ʻino, no ka ʻino (To Return Evil for Evil)

Dec 13, 2019 · 40 min

When Five-0 investigates a tourist helicopter that was shot down by a missile, they trace the stolen artillery to a ghost from McGarrett’s past. After Adam’s ordeal in rescuing Tam

S10·E16 Core

He kauwa ke kanaka na ke aloha (Man is a Slave of Love)

Feb 14, 2020 · 43 min

On Valentine's Day, Tani and Noelani are held hostage during a convenience store robbery. Also, Five-0 investigates the murder of a Thai diplomat whose wife confesses to the crime,

S10·E18 Core

Nalowale i ke ʻehu o he kai (Lost in the Sea Sprays)

Feb 28, 2020 · 44 min

While Five-0 investigates a murder on a cargo ship where pirates impersonated the Coast Guard to board the boat, Adam finally gets the evidence he needs to take down the Island’s Y

S10·E20 Core

He puheʻe miki (A Gripping Cuttlefish)

Mar 13, 2020 · 43 min

While Five-0 investigates a scheme to rob tourists, Tani helps Girard Hirsh (Willie Garson) prove the innocence of his elderly uncle when he’s suspected of murder. Also, Tani and J

S10·E22 Mytharc

Aloha (Goodbye)

Apr 3, 2020 · 43 min

Danny is abducted and badly wounded by Wo Fat's wife, who is after the cypher Steve's mother left him. Steve works to solve the case his father left for him 10 years ago.

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