Three episodes in, and Agent Kim Reactivated has already claimed the title of 2026’s highest-rated miniseries. SBS’s new action revenge drama, marking So Ji Sub’s return to television after 13 years, is proving that a father-daughter story with a lethal secret past is exactly what audiences wanted this summer.
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A Ratings Juggernaut
According to Nielsen Korea, the show’s third episode pulled an average nationwide rating of 18.8 percent, making it the most-watched program of any kind to air that Friday. That figure caps a remarkable climb: the series premiered at 9.5 percent, then jumped to 15.7 percent in episode two — becoming the fastest drama on any channel to cross 15 percent since The Penthouse 3 five years earlier.
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Agent Kim Reactivated: Ratings Climb at a Glance
| Episode | Nationwide Rating | Milestone |
|---|---|---|
| Episode 1 | 9.5% | Highest miniseries premiere of 2026 |
| Episode 2 | 15.7% | Fastest drama to hit 15% since The Penthouse 3 (2021) |
| Episode 3 | 18.8% | Most-watched program of the week; highest 2026 miniseries rating |
What’s the Show About?
Based on the popular Naver Webtoon “Manager Kim,” the series follows Kim Do-hyeon, a seemingly ordinary single father and office worker who is secretly a former inter-Korean covert operative. When his daughter goes missing, he’s forced to resurrect his old identity and skills to bring her home — a premise drawing comparisons to Taken. So Ji Sub leads an ensemble cast that includes Choi Dae-hoon, Yoon Kyung-ho, and Joo Sang-wook.
Why It’s Resonating
Beyond the numbers, fans have rallied around So Ji Sub personally, celebrating his known off-screen support for independent and international films. Combined with his trademark intense action style and a fast-paced, emotionally driven story, the show has become one of the clearest breakout hits of the year.
Where to Watch
Agent Kim Reactivated airs on SBS every Friday and Saturday and is also available for streaming on Netflix.
FAQs
Q1. Who stars in Agent Kim Reactivated?
So Ji Sub leads the series as Manager Kim, alongside Choi Dae-hoon, Yoon Kyung-ho, and Joo Sang-wook.
Q2. Where can I stream Agent Kim Reactivated?
The series is available on Netflix, alongside its SBS broadcast in South Korea.
