It has been almost 10 years since Train to Busan made a packed train feel like the worst place on Earth to be during a zombie outbreak. Since then, the franchise has struggled to recapture that same tension. Peninsula went bigger with its action, but lost much of the tight survival horror that made the original such a hit. Now, for the franchise’s ten-year anniversary, director Yeon Sang-ho is finally returning to his claustrophobic, survival-horror roots with Colony (Gunche in Korean) set to hit U.S. theaters on August 28.
This time, there is no speeding train. Colony traps its characters inside a towering Seoul skyscraper during a biotech conference after a weaponized fungus spreads through the building. With the doors locked and the infection moving fast, escaping is already difficult enough. The real problem is that these infected are nothing like the zombies seen in the original movie.
The fungus connects them through a mycelium-based hive mind, allowing the infected to share sensory information, learn from failed attacks, and adapt to the survivors in real time. That turns every attempt to survive into a new problem, because the infected are not simply chasing their victims anymore. They are learning from them. After making its debut at Cannes and already reaching several Asian markets, Colony is finally heading to U.S. theaters in just two weeks.
The Theatrical Return Of Train To Busan Makes This The Ideal Time To Watch Colony
The timing of Colony‘s U.S. release could not be any better. Train to Busan is returning to theaters across the U.S. and Canada on August 14 for its 10th-anniversary celebration, giving fans a chance to see the original on the big screen in a brand-new 4K remaster. Watching the movie that started it all just two weeks before Colony arrives is almost the perfect setup for another round of Korean zombie horror.
Matching similar vibes and premises as the original hit, Colony throws a group of strangers into a nightmare where the only option is to work together or die. The big change is the setting. Instead of a speeding train, the outbreak takes over the Dongwoo-ri high-rise during a major Chains Bio presentation. Once the authorities realize the virus is spreading, the entire building is locked down, leaving everyone inside trapped with the infected. Their best chance of getting out of this mess is searching for the scientist responsible for the outbreak, hoping he actually holds the cure.
The movie also has a strong cast behind the chaos. Gianna Jun, known internationally for My Love from the Star, leads the film as Kwon Se-jeong, a biotech professor who arrives at the building looking for a job before finding herself caught in the outbreak. She is joined by Healer star Ji Chang-wook playing Choi Hyun-seok, a security guard trying to keep his disabled sister alive as the building falls apart around them.
Koo Kyo-hwan rounds out the main cast as Seo Young-cheol, the scientist responsible for creating the weaponized slime mold. That gives Colony a pretty interesting setup, with a biotech expert, a security guard, and the man behind the outbreak all stuck inside the same locked-down building. With the infected getting smarter by the minute, finding the cure may be the only thing that keeps them alive.
Colony Succeeds By Forging Its Own Path Rather Than Copying Train To Busan
Colony does have its weak spots, particularly when it comes to the characters. The movie’s infected are easily its most interesting idea, but the story does not always give the human characters enough time to build the same emotional connection that made Train to Busan so effective. That becomes noticeable when the body count starts rising, because the deaths simply do not carry the same weight as the losses in Yeon Sang-ho’s 2016 classic.
That does not stop Colony from being a pretty wild zombie thriller in its own right. The infected constantly changing their approach gives the movie a different kind of tension, while the cramped setting leaves plenty of room for some brutal action and nasty surprises. The cast also does a lot with the material, especially as the situation inside the building keeps getting worse.
Colony was never going to replace Train to Busan, but it does not need to. It works best when treated as its own zombie thriller rather than a direct replacement for the original. The movie’s biggest strength is taking the basic zombie outbreak and finding a completely different way to make the infected terrifying.
- Release Date
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August 28, 2026
- Runtime
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123 minutes
- Director
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Yeon Sang-ho
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Jun Ji-hyun
Kwon Se-jeong
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Koo Kyo-hwan
Seo Young-cheol
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Ji Chang-wook
Choi Hyun-seok
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Shin Hyun-been
Kong Seol-hee
