1. You need Gong Yoo, Bae Doona and great physique (well, the actors do, I’m just pretending I can run). Be prepare to run. Run. Run. Run. And jump. Communication with Gong Yoo is a must. He’s the captain and the guy in charge. If you don’t maintain comms and do what he says, he will remind you. Bae Doona will only answer you if you have something scientific to add into the conversation.

2. Prepare to go on a mission with minimal information. Remember, you’re a good soldier. So, do what Capt. Gong say, and you will be alright. Information will only be feed to you by second and fourth episode. Fifth episode, you sort off get the full picture.

3. Get your Binge-session/marathon-session routine ready. Comfy clothing is a must. Air-conditioner/heater needs to be in working order. Don’t forget food and drinks. If you’re watching via your laptop, ensure your charger is within reach. You can also thanks to the Netflix crew to do a full release of this 8-episode drama.

4. Be thankful of the clean water you’re drinking right now. Just do.

5. If you’re not into genres of space and pseudo thriller, this not the tv series for you. If you’re into some mindless thriller fluff with fantastic cast, you may enjoy this to end 2021.