The best parts of the episode go to Will, who is increasingly paranoid after an unexpected dinner invitation from his API supervisor Kale Ingram. I loved Will's reaction when Maggie tells him Ingram invited him over: he, like us, can't believe that this chilly, sardonic dude wants to chitchat over drinks and salads. The dinner itself is a great scene, where it's revealed that Ingram is involved with... I shan't say, because it's a great surprise.
Meanwhile, Katherine Rhumor's subplot gets more interesting, as she really starts closing in on some weirdness regarding the reasons her husband may have taken his life. It involves a mysterious company, Atlas McDowell, and a great supporting performance by Maryann Plunkett as another widow whose husband killed himself under mysterious circumstances.
I also enjoyed Will's comparison between the operations of Al-Qaeda and the cellular structure of slime mold; the writers are still on their A-game in this series when it comes to diction, dialogue, and shrewd characterizations of the uncertainty inherent in the real-life intelligence industry. Onward to Episode 7!