I was hesitant to watch this drama, mostly because I typically find myself not enjoying sci-fi kdramas too much. However, this one surprised me!!

In a bleak and dystopian future, the world (or at least S Korea) has been destroyed with little breathable oxygen left. A strict divide in social class leaves the top of the pyramid in a cushy, oxygen-filled environment and the refugees fending for themselves in a barely livable and barren landscape. Moving up the social ladder is impossible - unless you're a delivery driver. Sa-wol decides he will do his best to become a driver like the legendary 5-8, who seems to do his job and help refugees at the same time. However, the job is much more dangerous than it seems, and the people at the top seem to have no interest in helping those beneath them.

This short series depicts a not-so-new take on a dystopian future, but does so in a way that's very enjoyable to watch. Sa-wol is very committed to his dream of being a delivery driver and gets himself wrapped up in a mess bigger than he ever anticipated. Many plot points were totally under-explained, but overall for 6 episodes it was super solid. I think this would've worked better as an 8 or 10 episode drama, but still definitely worth the watch.