There are some holes in the story and if the mutants had been explored more, even if needing a few extra episodes, I think the plot would have benefitted. Nothing is mentioned about life outside Seoul, so my imagination assumes all survivors of the comet strike that almost wiped out the entire population, headed there.
Overall though, I found this drama a great watch. Being relatively short and all eps available immediately on Netflix, it made for an excellent binge and felt like watching a film.
I loved the entire cast and I cannot now think of one actor/character that let the story or production down.
The feel of a Seoul turned into a dull, dusty, sand covered desert with a highly toxic atmosphere, was pretty realistically conveyed. It felt grimy, oppressive and lifeless.
A class system exists that real life is beginning to mirror in many respects.
Living is segregated, where those with the money or background to live and work within Cheonmyeong's dome, have light and oxygen. The lower working class, regular soldiers and the deliverymen/women who transport goods and oxygen to those living outside, have purpose built, uniformed, secure, identical windowless housing blocks.
The lowest class are referred to as refugees. They eek out a living and have to fend for themselves pretty much.
Everyone going outside has to wear special oxygen masks and cover up against the dusty atmosphere.
The disparity is stark and with no prospect of things improving, life outside is dangerous, with gangs who pirate the deliverymen's juggernauts.
We meet various characters within the plot revolving around a battle that is brewing against the ruling Cheonmyeong company, whose heir is a Hitler like character that views refugees like vermin.
Several plot twists and surprises add to the compelling story.
At only 6 eps, you won't find much background or delving into the stories of the main characters (let alone supporting ones), but snippets are included and some flashbacks, that give enough info for the plot and characters to make sense.
I loved it. Kim Woobin was perfect for the role of 5-8. With just enough humour to stop it tipping into a depressing watch, there is also plenty of action.
The ending was appropriate to rounding things up and gave a glimmer of hope.
Definitely worth watching and an easy one to watch again when the mood takes... which I will.