We need to talk about Silo… and there will be spoilers. To set thing up, I was looking forward to this obviously, as it’s about a post-apocalyptic world where a hardy group of survivors live in a sealed bunker, make do and mend, because the outside world is so dangerous. I hadn’t read the books, although I have now somehow managed to snap up all three of the books for future perusal.

In the meantime, though, I don’t want to read them because I don’t want to spoil anything that might happen in future series. The twist at the end of final episode of series one was so incredible - that’s LOST levels of revelation, right there. And even better because everything leading up to it had been so good, the perfect level of questions being raised and answers being dripfed, characters learning things, being killed off, fighting for the truth, and for their lives, and all of that good stuff.

So many questions, though.

• Who are the founders? Why have they kept these secrets?
• What other things are considered red-level relics?
• What was the rebellion all about?
• What is the syndrome and would there be a cure with enough knowledge?
• Where does George’s giant door lead?
• How is it possible no-one else ever found George & Juliet’s secret hideaway?
• Who is in all the other silos?
• Are they run the same way or are they all completely different?
• Where are the mines and what are they mining?
• What is Nichols going to do now? Knock on another door?

The calibre of cast is another positive element to this show. Rashida Jones and David Oyelowo could quite easily helm a full series of their own, but absolutely own the one or two episodes that they are in. And when Rebecca Ferguson rocks up, supported by Harriet Walter, and in conflict with Tim Robbins and Common. All very different but all working together so well. There are also guest appearances from Iain Glen, Sophie Thompson, and so many more.

Thankfully there is definitely going to be a season two and filming is already underway. Always a relief to know there is more entertainment coming, particularly when you’ve seen something so good and something that still has a lot to explain.