After Jason Wilkes comes into contact with a small piece of zero matter - that momentarily makes him substantive again - he learns the location of the body of the "lady in the lake".
However, when Peggy and Jarvis go to retrieve it, they discover Whitney Frost and her husband there as well. Whitney has absorbed all the zero matter out of the corpse and now wants to recreate the atom bomb test that first created the zero matter and opened a "rift" to 'somewhere else'.
Peggy, with Chief Sousa, puts together a clandestine team - including Jarvis, Rose the SSR 'receptionist' (Leslie Boone), and scientist Dr Samberly (Matt Braunger) - to break into a Roxxon facility and disarm the last two nuclear bombs there, before Whitney can get her hands on them.
Before she can do all this, Peggy has to get into Roxxon HQ and steal the key to the nuclear facility from Hugh Jones (Ray Wise), using a memory-blocking gadget devised by Dr Samberly.
The titular Atomic Job doesn't go exactly to plan, with Jarvis finding himself forced to disarm the bombs - with guidance (through a locked door) from Sousa, while Peggy has a run-in with Whitney. Although she avoids being zapped by Whitney's zero matter "death grip", Peggy still ends up badly injured.
The team turn to Sousa's new fiancée, Violet (Sarah Bolger), a nurse who quickly picks up on Sousa's unrequited feelings for Peggy.
Once again, Agent Carter hits all the right buttons, blending fast-paced action with character development.
Of course, if you think about it, it's no wonder Agent Carter has low viewing figures: it features a feisty, intelligent female lead pitted against a feisty, intelligent female antagonist. What on Earth were they thinking?
This episode in particular saw the supporting male characters - even Jarvis in his nuclear bomb defusing role - playing distant second fiddle to Peggy and Whitney.
And we also got to know more about a couple of the other female characters in the show, namely Rose (who kicked some serious ass in The Atomic Job) and Violet, who saved Peggy's life and even offered to let her 'love rival' stay at her home, despite being well aware of Sousa's feelings.
My only complaint about this near-perfect episode was Peggy's very cavalier attitude when using the memory-alerting device (repeatedly) on Jones, despite being warned it might cause brain damage.
I was concerned that this was played for laughs, but perhaps, as a stroke survivor, I just felt itwas slightly out of character for both Peggy and the show.