I thought the first season of "Black Summer" had a promising start, but then descended into disappointing nonsense due to bad writing. I said in my review of it that I hoped the second season could be more consistent, and I do think they managed that.
Set an undetermined amount of time after the events of the first season, and relocated to a snowy woodland area, Rose (Jamie King), Anna (Zeo Martlett), Spears (Justin Chu Cary) and Sun (Christine Lee) are trying to survive when a plane flies overhead, dropping supplies, gives them hope of a more permanent rescue. However, they are far from the only group to have seen the plane, and the dropped resources, and exact location of the airstrip are violently fought over.
If the first season started great and descended to awful, the second season is much more consistently solid. They haven't messed around with the format that much, the chaptered headed sections remain, as does the jumping between characters who eventually interact - however, there's a little more focus this time on showing the events out of order, which can be used for good story effect, for example, showing our heroes with a room full of bodies, before jumping back to their introduction, so we know they are going to end up dead, but not why. The big change is that it's much more one story, as opposed to how episodic some of the first season was - we do still have the detours, such as the episode that focuses on Spears meeting Braithwaite, but much more than previously it's all servicing the one narrative.
One thing that's a definite step up is in some of the close quarters action sequences, particularly the frantic Bourne-style ones that use very close camera work to give an idea of the kinetic energy involved.
It does occasionally stretch the bounds of logic, like others I wondered why you'd ever leave the lodge for just the potential of the airstrip, but still. Nice to see a show that takes on board its faults and improves, the same level of improvement for season three would really make for a quality show, but for now it's just a reasonable one.