This review is going to be very short because I couldn't give any less shit about cases-of-the-week.
Some girl can see the future and draw it (sounds like HEROES) and it involves people dying. She eventually sees a big explosion and saves the day before her brain explodes or some shit, blahblah.
Now, let's get to the only important thing in this episode. An Observer told Olivia that she has to die. Olivia is a tad concerned about this. When she is able to talk a suicide bomber down and stop what the drawing-girl saw in her vision, she feels it is perhaps possible to change her own fate.
She then talks to Peter who tells her what the Observers are and also that he doesn't believe they can be wrong when they tell you something about the future since they've lived it. Obviously this is a setup to the end of the season when we find out that you CAN IN FACT CHANGE THE FUTURE! OMG!
Actually, I would rather the season/series end on someone having to sacrifice themselves for the other (like we would have gotten at the end of season 3) but I doubt they will do it.
Oh, there's a scene between Nina and Olivia where Olivia confesses her true love for her mother-figure. Then talks about her headaches. Nina tells her she has some new medicine for her. Ruhroh.
Anyway, though I am bored to mostly death by these cases-of-the-week, this one wasn't terrible and the hunt for the bomb and bomber had some interesting elements. However, there was so little actual advancement to the plot that I could have just skipped it and not lost out on much of anything.
If I had to rate this one, I'd give it:
79 out of 100
It could have been worse. It could have been better. This is my "I didn't want to delete it from my DVR right away" score. At least there was some Walter and Peter interaction. Though, nowhere near enough.