The great thing about horror: Just when you think a subgenre’s dead, there’s always a brilliant new entry that zaps fresh, new life back into it. And that’s exactly what happened when South Korean director Sang-ho Yeon unleashed his zombie epic, Train to Busan, on audiences who only thought they’d had their fill of the undead. An unrelenting and action-packed pulse-raiser that focuses on a father and daughter who board a train just as the apocalypse begins, it takes more of the Danny Boyle-style approach to its virally infected, rather than, say, George A. Romero. Read: There are no slow staggers here; zombies be in full-on torque mode. And they don’t let up for nearly two hours. Look for the American remake coming soon.