Matt Grobar Assistant Editor, AwardslineToday at New York Comic Con, TNT announced that Snowpiercer will return for its second season on January 25th, with Sean Bean and Rowan Blanchard joining the main cast.Based on a 2013 film by Oscar winner Bong Joon-ho, Snowpiercer is set on an enormous train of the same name, which perpetually circles the globe, following an event that turned the world into a frozen wasteland.