1) “Snowpiercer,” 9 p.m., TNT, rerunning at 10. Most humans have already been killed by the bitter cold. Now the few survivors – on a thousand-plus-car train – have added to the toll; Till and Layton (shown here in a previous episode) investigate the latest murders. This hour is dark and downbeat – even for an apocalyptic thriller – but sharply crafted. It also finds people worrying about Miss Audrey: Ostensibly on a date with Mr. Wilford, she planned to plant a listening device. Now she hasn’t returned.
2) “Debris,” 10 p.m., NBC. Suddenly, Mondays are good nights for science-fiction. After the 9 p.m. “Snowpiercer,” switch to NBC. Last week’s opener – a good one – told us that an alien ship exploded; its debris, scattered over the hemisphere, can alter physics and emotions. Tonight, this other-worldly force is dragging metal from an evacuated town.
3) “The Bachelor,” 8-10 p.m., ABC. Here’s the episode that draws attention – an overnight “fantasy suite” date with each of the three women. That brings the question: “Will they or won’t they?” (Safest bet: They will.) Matt James, 28, will be with Michelle Young, 27, a Minnesota teacher; Bri Springs, 24, a San Antonio communications manager; and Rachael Kirkconnell, 24, a Georgia fashion-designer, now infamous for (among other things) attending a party patterned after a slavery-days plantation,.
4) “Bob (Hearts) Abishola,” 8:30 p.m., CBS. Diligent and well-mannered, Dule has never disobeyed his mother. Now comes a turning point: He wants to visit his parents’ native Nigeria with his dad. Abishola, furious that the dad left them eight years ago, says no. Trouble follows.
5) “9-1-1” and “9-1-1: Lone Star,” 8 and 9 p.m., Fox. Just eight weeks into the season, both shows will air their “winter finale,” then take a break. First, there are troubles – an apartment fire, a bank robbery, and, of course, a pregnant woman lost in a parking garage. Also, emotions fray: A couple has reached a breaking point; a flight attendant reaches her limit with her passengers.