I'm on and off on this series, and I was surprised by tonight's episode and its mix randomness(the deadliest robot in the world just standing around in fishnets and a corset) and craziness.

First off, is the whole Wall thing new? I've consistently watched the last five episodes and I don't remember it mentioned. The info dumps were a bit much, but I really enjoyed it, and hope they show what is beyond this wall. It better be mutants. Or zombies. I'll take mutant zombies.