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The Worst Episodes of Zero Day

Every episode of Zero Day ranked from worst to best. Explore the Worst Episodes of Zero Day!

Binge this in 5h 12m•Peaking at 6.9/10

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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Episode Rankings

  1. #1 Worst Episode
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    Zero Day Season 1 Episode 6 - Episode 6
    6.4/10(1809 votes)

    #1 - 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.

    Director:Lesli Linka Glatter
    Writers:Noah Oppenheim, Eric Newman

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  2. Zero Day Season 1 Episode 3 - Episode 3
    6.5/10(1805 votes)

    #2 - 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.

    Director:Lesli Linka Glatter
    Writer:Roberto Patino

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  3. Zero Day Season 1 Episode 2 - Episode 2
    6.6/10(1958 votes)

    #3 - Episode 2

    S1:E2

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

    Director:Lesli Linka Glatter
    Writers:Noah Oppenheim, Eric Newman

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  4. Zero Day Season 1 Episode 4 - Episode 4
    6.6/10(1736 votes)

    #4 - 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.

    Director:Lesli Linka Glatter
    Writer:Eli Attie

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  5. Zero Day Season 1 Episode 5 - Episode 5
    6.8/10(1720 votes)

    #5 - 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.

    Director:Lesli Linka Glatter
    Writer:Dee Johnson

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  6. Zero Day Season 1 Episode 1 - Episode 1
    6.9/10(2300 votes)

    #6 - 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.

    Director:Lesli Linka Glatter
    Writer:Unknown

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    The 20 BEST Episodes of Zero Day

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Worst Episodes Summary

"Episode 6" is the worst rated episode of "Zero Day". It scored 6.4/10 based on 1809 votes. Directed by Lesli Linka Glatter and written by Noah Oppenheim, Eric Newman, it aired on 2/20/2025. This episode scored 0.1 points lower than the second lowest rated, "Episode 3".