From what I gather it is a prison and there may be people inside doing there own thing so to speak. In regards to that sword person with the zombie pets !? I just hope they dont go to sci fi on us next season. It has been somewhat believable if you believe in zombies being possible but I hope they keep it somewhat believable. Seems to many times series get to off the wall as they scramble for new ideas for the show. Either way I will still watch next season!