Train To Busan's director, Yeon Sang-ho, returns to the horror genre after a decade with his latest movie, Colony. This sequel follows a biotech professor trapped in a virus outbreak at a conference, set against a tense train journey. While Colony debuts with a 70% Rotten Tomatoes score, critics note it lacks the emotional depth of Train to Busan’s human arcs and style. Yeon's approach blends action with a unique narrative, though some praise its clever pacing. For fans of the franchise, Colony offers a fresh take on the zombie concept. Though it hasn’t reached the same acclaim as Train to Busan, Colony highlights how genre innovation continues to shape cinematic storytelling. This film challenges traditional zombie tropes while offering a bold, independent entry into the market.