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Sirex

The Defects

After being discarded by their adoptive parents and narrowly escaping death, a group of children set out on a relentless path of survival and revenge in this high-stakes action thriller.

IMDb 6.28 episodes2025HDU/A 16+

Action•Suspense•Drama

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S1 : E1 The Defects — Refund

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S1 : E1The Defects— Refund

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Korean

Episode Related Details

S1 E1 - Refund

July 21, 2025 • 57m•U/A 16+

Living in hiding after being discarded by their adoptive parents, Ah-hyeon and the children endure brutal training to survive a world that wants them dead. When Tae-shik, who’s been secretly rescuing “refunded” children, receives a new kill order, he risks everything to save one more life.

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S1 E2 - Defective Product

July 22, 2025 • 54m•U/A 16+

Ah-hyeon and the children attempt to flee the country as planned but are intercepted by the organization led by the relentless Jung-hyun. When they uncover the horrifying truth behind the "refund" system, they make the fateful decision to take revenge, starting with their first target, So-mi's adoptive parents.

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S1 E3 - Survivors

July 28, 2025 • 55m•U/A 16+

After extracting a crucial clue from So-mi's adoptive father, the children move one step closer to uncovering the truth behind the organization. But what they witness at the organization's illegal adoption shakes them to the core. Meanwhile, Se-hee initiates a secret project with the First Lady.

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S1 E4 - Mother

July 29, 2025 • 55m•U/A 16+

To root out the horrifying adoption organization, the children target the head of the organization. They undertake a daring infiltration mission into the bunker. There, Ah-hyeon faces a shocking truth.

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S1 E5 - Useful Child

August 4, 2025 • 56m•U/A 16+

The children work together to save Ah-Hyun. They decide to rob the donations from the church of Joo-Ahn's adoptive father, Yoon Se-Hoon. Se-hee reveals her ambitious desire to dominate the world by exploiting Kwon Kang-man and Yoon Se-hoon.

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S1 E6 - Real Name

August 5, 2025 • 46m•U/A 16+

Ah-hyeon and the children, now murder suspects, seek help from the only adult they can trust, Detective Choi. Kwon Kang-man, troubled by the unexpected return of his adopted son Seok-su, who was presumed to be dead, decides to take matters into his own hands.

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S1 E7 - D-Day

August 11, 2025 • 47m•U/A 16+

The children narrowly escape the fire, but they suffer a heavy loss. Determined to seek revenge, they rally their strength. Se-hee, meanwhile, unleashes a much more brutal refund project than they could have anticipated.

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S1 E8 - Final Refund

August 12, 2025 • 48m•U/A 16+

A chilling camping trip unfolds. Se-hee’s unrestrained cruelty reaches a terrifying peak as she determines to annihilate everyone in her path. Ah-hyeon and the children confront Se-hee in a final battle to stop her once and for all.

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