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The Best Episodes of Zero Day

Every episode of Zero Day ranked from best to worst. Let's dive into the Best Episodes of Zero Day!

Binge this in 5h 12mPeaking at 7.6/10

A former U.S. President is called out of retirement to find the source of a deadly cyberattack, only to discover a vast web of lies and conspiracies.

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Seasons1

Episode Rankings

  1. #1 Fan Favorite
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    Zero Day Season 1 Episode 5 - Episode 5
    7.6/10(1637 votes)

    #1 - Episode 5

    S1:E5

    A personal tragedy reopens old wounds for the Mullen family. Speaker Dreyer pushes for a change in leadership. Sheila testifies before Congress.

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  2. Zero Day Season 1 Episode 6 - Episode 6
    7.6/10(1723 votes)

    #2 - Episode 6

    S1:E6

    A new threat creates further unrest across the nation. As he narrows in on the culprit, Mullen is faced with an agonizing decision.

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  3. Zero Day Season 1 Episode 4 - Episode 4
    7.3/10(1653 votes)

    #3 - Episode 4

    S1:E4

    A shock to the financial system increases scrutiny on Mullen's commission. Valerie investigates Proteus. Roger must make a difficult choice.

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  4. Zero Day Season 1 Episode 1 - Episode 1
    7.2/10(2201 votes)

    #4 - Episode 1

    S1:E1

    Former President George Mullen's comfortable retirement is upended after he's asked to lead an investigation into a horrific cyberattack.

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  5. Zero Day Season 1 Episode 3 - Episode 3
    7.2/10(1719 votes)

    #5 - Episode 3

    S1:E3

    Mullen's initial arrests draw blowback from the public — especially TV pundit Evan Green. Alex faces pressure to investigate her father.

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  6. Zero Day Season 1 Episode 2 - Episode 2
    7.1/10(1870 votes)

    #6 - Episode 2

    S1:E2

    Mullen's commission investigates a hacking ring. President Mitchell weighs retaliation. A powerful figure has demands for Roger.

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  7. Trending NowTRENDING NOW

    The 20 WORST Episodes of Zero Day

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Best Episodes Summary

"Episode 5" is the best rated episode of "Zero Day". It scored 7.6/10 based on 1637 votes. Directed by Lesli Linka Glatter and written by Dee Johnson, it aired on 2/20/2025. This episode scored 0.0 points higher than the second highest rated, "Episode 6".