Agent Carter (2015–2016)
3 user 11 critic

A Sin to Err 

Carter believes that the spy that stole Stark's technology is a woman. The SSR now knows that Carter is helping Stark. There's a new spy in the agency.


Stephen Williams


Stan Lee (based on the Marvel comics by), Jack Kirby (based on the Marvel comics by) | 3 more credits »




Episode cast overview, first billed only:
Hayley Atwell ... Peggy Carter
James D'Arcy ... Edwin Jarvis
Chad Michael Murray ... Jack Thompson
Enver Gjokaj ... Daniel Sousa
Shea Whigham ... Roger Dooley
Lyndsy Fonseca ... Angie Martinelli
Ralph Brown ... Dr. Ivchenko
Bridget Regan ... Dottie Underwood
Meagen Fay ... Miriam Fry
Rick Peters ... Dr. Seth Honicky
Devin Ratray ... Sheldon McFee
Steven Hack ... Albert
Dimiter D. Marinov ... Fyodor (as Dimiter Marinov)
Alexander Carroll ... Agent Yauch
Dave Matos Dave Matos ... Pasha


Peggy discovers the shocking truth about Leviathan but doesn't realize that her true enemies are even closer than she imagined. Meanwhile, Souza is close to confirming the truth about Peggy and may just put her in the crosshairs of the SSR. Written by

Plot Summary | Plot Synopsis


TV-PG | See all certifications »






Release Date:

10 February 2015 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


While Chief Dooley is talking to Dr Ivchenko, discussing his marital issues at home, he says his wife's lover was classified as 4F - (A US military classification, deeming candidates unfit for active service) This was the same classification Steve Rogers was given several times upon his attempts to join the US Army before becoming Captain America. See more »


Peggy and Jarvis walk past a 1948 Chevy sedan. This episode takes place in 1946. See more »


Jack Thompson: I just don't understand how you lost her.
Daniel Sousa: I couldn't exactly outrun her, Jack. Besides, you're not getting a Medal of Valor for your performance.
Jack Thompson: Unbelievable. Carter. Did you know?
Daniel Sousa: What the hell do you think, Jack? No. I mean, I suspected she was hiding something, but not this. You?
Jack Thompson: No. No, I sure didn't. You said she has a place at the Griffith, right?
Daniel Sousa: On 63rd, near Lex.
Jack Thompson: Well, crutch faster. We got places to be.
See more »


References King Kong (1933) See more »


It's a Good Day
Written by Peggy Lee and Dave Barbour
Performed by Peggy Lee
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Women are often overlooked, taken for granted
25 July 2017 | by jhudson-11704See all my reviews

We are getting closer to the finish line, and Leviathan gave us another detour. I sort of suspected Ivchenko was with Leviathan. It was sort of coincidental when the typewriter sent a message to the SSR luring them to Russia, even though they must have known it was found.

I did love the larger focus on Dottie as it shows both her innocent facade and dangerous, terrifying self. She is one truly great villain. And that plays well against Atwell's heroic performance.

I did like the action in this episode especially in the automat with the accompanying music. The action in this series as a whole is great but it was intriguing to watch Carter and Jarvis take on some agents.

Angie was awesome too, using her acting chops to fool the agents in order to help Peggy. Just that scene is hilarious because it makes it so awkward for Thompson and Sousa that they have to leave.

I am now glad that both Carter and the rest of the SSR are at the same stage of the investigation, not necessarily the same side though. I did find it annoying the use of Yauch. Sure, he wasn't really important or focused on in any episode, just sort of there. But the sudden focus on him in this episode and his death was sort of odd. I understand the need for him to let Ivchenko progress with his plans it was just odd that Yauch had no development before this and yet had a significant amount of screen time before being thrown under the bus. *wink wink*

+ Contrast between Dottie and Carter + Automat action + Fonseca's Angie - Ivchenko working for Leviathan didn't surprise me - Use of Yauch

Final Score: 8.4

2 of 2 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 3 user reviews »

Contribute to This Page

Free Movies and TV Shows You Can Watch Now

On IMDb TV, you can catch Hollywood hits and popular TV series at no cost. Select any poster below to play the movie, totally free!

Browse free movies and TV series

Stream Trending TV Series With Prime Video

Explore popular and recently added TV series available to stream now with Prime Video.

Start your free trial

Recently Viewed