After a clever catch up that further connected the dots in Person of Interest Season 3 Episode 16, the show is clearly headed down the final stretch of episodes and not looking to slow down anytime soon.
Decima, Vigilance, the POI team,and even Root are all converging because the threat of a new machine, Samaritan, has the potential to go online. And that could be catastrophic not just for the Machine but people everywhere.
Can you even imagine two super computers going toe to toe? What would that even be like?