It's actually surprisingly decent and worth my time. There's lots of holes. But the production values and plot are thought out well enough that you're not distracted by it. They redeemed themselves from Season 2.

There's so many typical tropes of a nuke they could have used. But they didn't fall for them. I really liked that this revolved around old Soviet Union people infighting from an origin event.

If you're paying for Prime, it's a good value watch.