Wow, after some uneven episodes in Season 3, this is like buying a new car which, unknown to you, comes with a turbo, and you accidentally floor the gas pedal right out the dealership.
Some notes:
1. There are no less than 3 stories in play at the same time and if that writing feat is not impressive enough (and it should be) the writing team manages to link up two of them at the halfway point. Wow. I think they give awards for that kind of writing.
2. Sarah Shahi is a natural comedienne. I am writing this just for the record as I sure she is aware of this already and does not need me to point this out. To this point in the series I have only had two genuine belly-laughs, the first was when Shahi turned up a woman's book club in an earlier episode, and the second was this episode, when Acker initially asks Shahi if they might possibly team up -- understand, at this point, Shahi has been Tasered, drugged, and tied to a steering wheel by Acker -- and Shahi politely declines, offering only a two word explanation, "Trust issues."
3. Although no one has asked me what I think of the Acker-Shahi teamup, let me simply say that if they did a breakout streaming internet series based on this pairing alone (which does not seem to be likely) I would give you my Paypal info now, and subscribe in advance for two years. Pity.
Easily one of the best episodes in the entire series although -- the only small caveat -- you have to already be a fan to appreciate the nuances.