It's aliens isn't it? That's what the Pattern and its weirdo henchmen are all about, aliens. Anyway a "can of magic space soup" or a mysterious tunnelling device is found. It looks like something you'd buy at Ann Summers. Anyway then this show's version of Richard Alpert shows up, an mysterious, maybe immortal guy who seems incapable of displaying human emotion. He is called The Observer and he observes Pattern events. Walter turns out to be not so doddery and has ties to The Observer. The mystery o'the week is unsolved and more questions are raised over Peter, it seems he can read his father's mind.
This was okay. What was the baddie's gun? What was Operation Thor? Why did The Observer call the device a Beacon and say he couldn't touch it? Why did The Observer save Peter and Walter's life in the car accident long ago? The Pattern has a mind reading interrogation machine?