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The Worst Episodes of The Defects

Every episode of The Defects ranked from worst to best. Explore the Worst Episodes of The Defects!

Binge this in 6h 56m•Peaking at 8.8/10

An action thriller depicting the revenge of children who barely survived the brink of death after being abandoned by their adoptive parents.

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Episode Rankings

  1. #1 Worst Episode
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    The Defects Season 1 Episode 7 - D-Day
    7.8/10(23 votes)

    #1 - D-Day

    S1:E7

    The kids barely make it out alive from the fire, but with a tragic loss. Fueled by grief and rage, they vow revenge against the monster once more. Meanwhile, Kim Se-hee sets her sights on a refund project that is far more massive, ruthless, and shocking than Ah-hyun and the kids could have ever imagined.

    Director:Unknown
    Writer:Unknown

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  2. The Defects Season 1 Episode 5 - Useful Child
    7.9/10(26 votes)

    #2 - Useful Child

    S1:E5

    The kids risk their lives to save their guardian, Ah-hyun. To do so, they're in desperate need big money, forcing them to confront Ju-an's adoptive father. Their plan is to steal offerings from his church. Meanwhile, Se-hee's ambition to seize even greater power pushes her toward devastating choices that could change the world.

    Director:Unknown
    Writer:Unknown

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  3. The Defects Season 1 Episode 8 - Final Refund
    8.3/10(29 votes)

    #3 - Final Refund

    S1:E8

    What begins as a camping trip soon turns into a living nightmare. Kim Se-hee's inhumanity reaches its peak as she executes her plan to massacre the "defects." To stop her once and for all, Ah-hyun and the kids rise up against her and her team, risking their lives for all the lives to avenge the ones already lost and protect those who could be next.

    Director:Unknown
    Writer:Unknown

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  4. The Defects Season 1 Episode 2 - Quality Dissatisfaction
    8.4/10(41 votes)

    #4 - Quality Dissatisfaction

    S1:E2

    Ah-hyun and the kids try to run away as Tae-sik has planned for them. However, Jung-hyun, who had been keeping an eye on them, picks up their trail, putting them in danger. As the truth behind the brutal "refund" system comes to light, the kids vow to take revenge on the adults. Their first target is So-mi's adoptive parents.

    Director:Unknown
    Writer:Unknown

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  5. The Defects Season 1 Episode 1 - Eye Shopping
    8.5/10(45 votes)

    #5 - Eye Shopping

    S1:E1

    Ahyeon and the children, who live as if they were dead after being abandoned, repeat harsh training to protect themselves. Taesik, who has been rescuing children without the organization knowing, makes a decision to save the new 'recall' target.

    Director:Unknown
    Writer:Unknown

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  6. The Defects Season 1 Episode 6 - Real Name
    8.6/10(31 votes)

    #6 - Real Name

    S1:E6

    Framed for murder, Ah-hyun and the kids turn to the only adult they trust, Detective Choi. Meanwhile, the unexpected and unwanted return of of Seok-su, the adoptive son who was believed to be dead, throws Kwon Kang-man into a crisis, leading him to seek ways to put an end to the adoption on his own.

    Director:Unknown
    Writer:Unknown

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    The 20 BEST Episodes of The Defects

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  7. The Defects Season 1 Episode 3 - Survivors
    8.8/10(39 votes)

    #7 - Survivors

    S1:E3

    After being disowned by their adoptive parents, Ah-hyun and the kids live as if they are dead. They endure brutal training, determined to protect themselves. Meanwhile, Tae-sik, who has been secretly rescuing children from the malicious organization, makes a bold decision to save a new "refund" target.

    Director:Unknown
    Writer:Unknown

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  8. The Defects Season 1 Episode 4 - Mom
    8.8/10(39 votes)

    #8 - Mom

    S1:E4

    To put an end to the inhuman adoption and refund system, Ah-hyun and the kids set out on a daring mission to confront the head of the evil organization. With fierce determination and a carefully crafted plan, they infiltrate the organization's bunker to strike from within. But once inside, Ah-hyun uncovers a devastating truth behind the system.

    Director:Unknown
    Writer:Unknown

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Worst Episodes Summary

"D-Day" is the worst rated episode of "The Defects". It scored 7.8/10 based on 23 votes. Directed by Unknown and written by Unknown, it aired on 8/11/2025. This episode scored 0.1 points lower than the second lowest rated, "Useful Child".