We left the first half of the series with a moment of gripping anagnorisis. Walter’s brother-in-law, the dogged but flawed DEA agent Hank Schrader (Dean Norris), picks up a volume of poetry from a basket in Walt’s bathroom. It’s addressed to “W.W.”, and signed by a man that Hank knows was a crystal meth producer. Wheels click inside his mind as he pieces past events together into a terrible conclusion. Meanwhile, Walt and his family – his wife Skyler (Anna Gunn), complicit through money-laundering; innocent son Walt Jr (RJ Mitte); and baby daughter Holly – laugh and eat outside, the very model of what Walt wanted to protect. That apparent stability was slipping away as we watched. It was only a matter of time.