The news comes as the series recently wrapped production on Season 3. Season 2 of the show debuted back in January.
“‘Snowpiercer’ has been an incredibly successful series for us that continues to capture the imagination of viewers, grow audience and maintain strong ratings,” said Sam Linsky and Adrienne O’Riain, co-heads of scripted original programming for TBS, TNT and truTV. “All of our seasons embark on an emotional, unexpected ride and the well-plotted storylines will continue to evolve and remain relevant to audiences. We’re excited to keep the train running into season four.