With Dottie in the custody of Whitney Frost and her goons, Peggy feels responsible for her but has no idea where the Russian agent is.
Dr Wilkes - aided by Jarvis's wife, Ana, has managed to build his containment unit and is delighted to discover that when switched on it works. Within the unit, he has substance again.
At the Chadwick Ranch, despite his finely-honed torture techniques, Vernon Masters fails to extract any information from Dottie.
However, when Whitney turns her zero matter-fuelled touch on her, the highly-trained Russian cracks and reveals that Jason Wilkes is still alive but in an insubstantial state - which is why Peggy wanted Whitney's "blood sample" in the last episode.
Whitney reactivates the 'homing beacon' in Dottie's necklace - alerting Peggy to her location. Both Carter and Jarvis realise it's a trap, and so take along some Stark-tech for protection.
Unfortunately, what they don't realise - until it's too late - is that the trap wasn't for them. It was a distraction. Whitney is going after Wilkes.
Meanwhile Chief Sousa runs afoul of Vernon Masters back at the SSR when he refuses to suck up in quite the same way that Jack Thompson did.
A solid episode that maybe took a bit too long to get to its crucial final act, Monsters gave us more quality Dottie moments, as well as some rather ominous foreshadowing with Ana's concern for her husband's safety.
However, something felt a bit off about this episode. It certainly wasn't up to the show's usual high standard, despite some stand-out moments.
Maybe I missed something, but Peggy's injury didn't appear to noticeably bothering her this week, either.
And while the whole gimmick around the code to operate the sonic device was entertaining, the revelation of its 'alternate setting' was a bit too convenient, with it just happening to go off as Jarvis remembered it (and Dottie and Peggy had worked their way free of their bonds).