Breaking Bad: The End is Near

I've noted a # of times that no show has consistently become better episode by episode than Breaking Bad. This week's episode - is it the penultimate? - carries that observation forward, still intact, as it's one of the finest and most dramatically intense episode every seen on TV, IMHO. From the very strange opening sequence - a flashback to a time when Walt and Jesse were first cooking meth in a trailer, and W. is trying to maintain a bizarre facade of normalcy with the then-pregnant Skyler - long cell phone conversation suggesting they take a drive up to Taos over the weekend, enjoy some family time - while he's cooking meth in the background! - to the very tense confrontation with the new meth gang when they discover that the now-captive Hank is a DEA agent, Walt's desperate attempts to negotiate for Hank's release, Hank's trenchant remark that W. is so smart and so stupid - he doesn't see that Hank's a dead man either way - the capture of Jesse and his abduction, the final face-ff between Skyler and Marie, the revelation at long last to "Junior," the violent confrontation at home between the bossy and now totally insane Walt and Skyler (and Junior), and finally Walter's revenge and this very strange phone call back to S., when he must know police are listening. What's his motive for that call? To pose as the only bad guy and take the heat of Skyler? Or something else more devious. The end is near.