Best TV and streaming picks for the week

DON’T MISS: “Snowpiercer” — In Season 2 of the postapocalyptic thrill ride, a new power struggle emerges on the speeding train. It causes a dangerous rift as people are divided between loyalty to rebel leader Layton (Daveed Diggs) and to scheming billionaire Mr. Wilford (Sean Bean), who has a new train, new technology and new game plan. While Layton battles Wilford for the soul of Snowpiercer, Melanie (Jennifer Connelly) leads the charge on a shocking new discovery that could change the fate of humanity. (9 p.m. Tuesday, TNT).

Other bets

MONDAY: Based on real events, “The Salisbury Poisonings” is a four-part drama that recalls the 2018 assassination attempt on a Russian double agent and his daughter in Salisbury, England. In the ensuing days, public health officials raced against time to trace the lethal nerve agent that threatened the city. (10 p.m., AMC).

WEDNESDAY: Based on a comic, the new sci-fi dramedy “Resident Alien” tells the story of an extraterrestrial (Alan Tudyk) who crashlands near a small town in Colorado and passes himself off as a human doctor. He tries to keep a low profile, but complications arise when he must help solve a murder. (10 p.m., Syfy).

THURSDAY: The new series “Rehab Addict Rescue” puts yet another twist on the home-renovation genre. Overwhelmed home owners call upon savvy pro Nicole Curtis to help them restore their crumbling historic abodes to their former glory while enhancing original architectural elements. (9 p.m., HGTV).