The first season of TNT's dystopian thriller television drama series Snowpiercer was picked up for a season order on January 2018. Whilst the season was scheduled to debut May 31, 2020, TNT brought forward the release date to May 17, 2020, arising from the increase in consumer demand following the outbreak of COVID-19.
Set more than seven years after the world has become a frozen wasteland, Snowpiercer centers on the remnants of humanity, who inhabit a gigantic, perpetually-moving train that circles the globe. Class warfare, social injustice and the politics of survival play out in this riveting television adaptation.
Snowpiercer, the Great Ark Train, has kept the last remnants of humanity alive for almost seven years. A rigid class system maintains order, with First Class holding power over workers, while a condemned Prison Class struggles to survive in the Tail. Now, a grisly murder is stoking class division, so Melanie Cavill, the powerful head of hospitality, deputizes a dangerous rebel to help solve the killing — Andre Layton, the world’s only surviving homicide detective.
Layton uses his new position as train detective to investigate the murder while gathering intel for the revolution on the side. Meanwhile, Melanie faces a resource crisis, with potentially drastic consequences for the entire train.
Layton descends into Snowpiercer's black market with Till, searching for both the killer and a valuable commodity for his revolution. Melanie stages a prize fight to distract the passengers from mounting class tension.
A shocking twist in the murder investigation brings Layton and Till's manhunt to a cat-and-mouse climax, but Layton is getting too close to Melanie's big secret, which may prove the most dangerous game of all.
Tensions between Third Class and First Class are boiling as Melanie stages the trial of the Snowpiercer killer. Third Class threatens a work stoppage, demanding representation on the jury, and Melanie makes a fateful decision about which side to favor.
Hiding out with help from his allies, Layton (Daveed Diggs) lays track for revolution. Meanwhile, an engineering emergency threatens every soul on Snowpiercer, and Melanie (Jennifer Connelly) is the only one who can save them.
On a divided Snowpiercer, Melanie (Jennifer Connelly) intensifies her search for Layton (Daveed Diggs). Meanwhile, Layton is weaponizing her secret, and Third Class faces a reckoning when he presents them with a choice.
The first season was brought forward fourteen days due to the increasing demand from consumers regarding COVID-19.
Across the Atlantic, the show is not airing on Netflix
The first two episodes dropped on Monday 25 May on Netflix, with one coming every Monday from then on.
Though in the story Snowpiercer is 10 miles long, with 1,001 cars. 
Production designer Barry Robison and his art department built 18 cars on four stages.
Including the engine; a hydroponic gardening car; first- , second- and third-class dining cars; a sushi restaurant with an undersea element; and the “chains” car, which resembles an Asian night market.
We learn at the very end of this second Snowpiercer episode that there are about 3,000 people onboard the train, Tailies included.
Snowpiercer Behind The Scenes “Rapid Fire Three Things To Bring Aboard” TNT
Snowpiercer Class Warfare - Behind the Scenes of Season 1 TNT
Snowpiercer Behind The Scenes Look of the Train TNT