Marvel’s upcoming ‘Agent Carter’ spinoff may have a harder time tying into the cinematic universe than its contemporary TV peer ‘Agents of S.H.I.E.L.D.,’ but the new 1940s-set serial will have the blessing of its franchise’s godfather all the same. Stan Lee has confirmed himself for a cameo in Marvel’s upcoming ‘Agent Carter’ TV series, which has an even newer trailer to boot.

Having appeared in just about every major Marvel movie release to date (including the aforementioned ‘Agents of S.H.I.E.L.D.’), Lee dropped the news at a discussion of former Marvel editor Roy Thomas’ new book “75 Years of Marvel: From the Golden Age to the Silver Screen.” As to which hour would see the revered Marvel legend putting another cameo, “Watch for the fourth one. I think my cameo is in the fourth episode. They ought to be ashamed of themselves that they didn’t give me three others before that, but what the hell? But it’s kind of a good cameo.”

The premiere now expanded to a full two hours (at the expense of one week’s airing), here’s Marvel’s summary of the ‘Agent Carter’ series:

Years before Agent Coulson and his S.H.I.E.L.D. team swore to protect those who cannot protect themselves from threats they cannot conceive, there was Agent Peggy Carter (Hayley Atwell, Marvel’s “Captain America: The First Avenger,” Marvel’s “Captain America: The Winter Soldier”), who pledged the same oath but lived in a different time when women weren’t recognized as being as smart or as tough as their male counterparts.

But no one should ever underestimate Peggy.

It’s 1946 and peace has dealt Peggy a serious blow as she finds herself marginalized when the men return home from fighting abroad. Working for the covert SSR (Strategic Scientific Reserve), Peggy finds herself stuck doing administrative work when she would rather be back out in the field; putting her vast skills into play and taking down the bad guys. But she is also trying to navigate life as a single woman in America, in the wake of losing the love of her life, Steve Rogers – aka Captain America.

When old acquaintance Howard Stark (Dominic Cooper, Marvel’s “Captain America: The First Avenger”) finds himself being framed for unleashing his deadliest weapons to anyone willing to pony up the cash, he contacts Peggy - the only person he can trust - to track down those responsible, dispose of the weapons and clear his name. He empowers his butler, Edwin Jarvis (James D’Arcy, “Master and Commander: The Far Side of the World”), to be at her beck and call when needed to help assist her as she investigates and tracks down those responsible for releasing these weapons of mass destruction. But Jarvis, who is a creature of habit and sticks to a rigid daily routine, is going to have to make some major life changes if he’s going to be able to keep up with Peggy.

If caught going on these secret missions for Stark, Peggy could be targeted as a traitor and spend the rest of her days in prison – or worse. And as she delves deeper into her investigation, she may find that those she works for are not who they seem, and she might even begin to question whether Stark is as innocent as he claims.

Most recently adding ‘The Americans’ star Costa Ronin as ‘Iron Man 2’ villain Anton Vanko, Marvel’s ‘Agent Carter’ also features ‘Boardwalk Empire’’s Shea Whigham as SSR boss Roger Dooley, ‘Nikita’ alum Lyndsy Fonseca as Peggy’s friend Angie Martinelli, James D’Arcy playing the human incarnation of Edwin Jarvis, and Chad Michael Murray and Whedon favorite Enver Gjokaj as Agents Thompson and Sousa, respectively. Its pilot will be directed by one-shot helmer Louis D’Esposito, with ‘The Winter Soldier”s  Russo brothers helming the second and third episodes, and ‘Captain America”s Joe Johnston likely the fourth.

You can check out the latest ‘Agent Carter’ sneak peeks and trailers below, and tell us in the comments what you want to see from Peggy’s 2-hour debut on January 6!