*Review contains spoilers, so read at your own risk!*
So, the new plot with the alien writing and all that, is that there is a guy that has the alien drug and is killing other people that also have the alien drug. But why? Kind of a psycho if you ask me.
More revealing info from Coulson's past and how the whole alien drug became to be. It was in fact, Coulson's idea and he started testing other people to see how they reacted to the drug. Everything was fine at first, but later on in the experiment they started to go crazy. However, for a few of them, it seems to have actually worked.
Like the girl from the beginning that got brutally murdered by someone she knew from the group. She just didn't remember her because she got new memories after all that happened.
However, out of all the people, there was one success story. A guy who actually had a family and didn't show any signs of carving or anything. But he was doing it in a different way. One that helped both Coulson and the creepy psycho guy out on realizing what it was that they were carving.
So, remember it is some sort of map they are carving. We learned that much from Skye the last time, but we still don't have a clue as to where it leads to. I'm thinking something alien. Like in space kind of alien. What it could lead to, I couldn't even begin to guess.
While all of that is going on, Grant is still on the run. Don't know where he is headed and he always seems to be one step ahead of the team. No surprise there. But they won't rest until they find him and what he is up to. But Skye might be their best way to do it, they just don't know it yet. I'm thinking Skye should tell them about that very cryptic call he gave her.
At the end, I totally thought that Coulson had lost it and was gonna start to kill people too. But I believe he had it under control looking back on it. Though he did put the family and himself in pretty big danger, but like I said, if it wasn't for finding this guy, neither one of them would have realized what it was that they were carving.