Agent Carter’s Cliffhanger Still Haunts the MCU

Agent Carter returns to the spotlight as a two-season, espionage-driven gem led by Hayley Atwell’s Peggy Carter—still streaming on Disney+—with an 87% Rotten Tomatoes score, a web of MCU lore, and an ending on a major cliffhanger the franchise has yet to resol

For a show that only ran two seasons, Agent Carter has a surprisingly loud afterlife. Ten years after Peggy Carter first walked into MCU storytelling, her series still feels like a secret a lot of viewers haven’t gotten around to keeping.

The timing for a binge couldn’t be better, either. While the 2026 MCU schedule is packed with superhero TV momentum—from Wonder Man to Daredevil: Born Again to The Punisher: One Last Kill—Agent Carter remains the quiet standout for anyone who wants spy-thriller energy. historic atmosphere. and the kind of character work that makes you care before the action even starts.

Agent Carter is set in a post-World War II world following Steve Rogers’ “death.” Hayley Atwell stars as Peggy Carter. working with the Strategic Scientific Reserve on a secret mission to clear Howard Stark’s name. In the process. Peggy has to navigate grief alongside misogyny and sexism. and she’s pulled into romantic entanglements as she tries to protect the world.

The show’s reputation backs up the hype: Agent Carter holds an 87% overall score on Rotten Tomatoes.

Peggy Carter on her own terms

Across two seasons, Agent Carter leans into a bright, ’40s espionage rhythm. Peggy’s not just solving problems—she’s surviving a world determined to discount her. Along her coast-to-coast mission, she teams up with Stark’s butler, Edwin Jarvis, played by James D’Arcy.

It’s the kind of series that makes its case through momentum: Peggy’s intellect and determination drive the plot. and the storytelling leans into being underestimated as a real advantage. not a throwaway trope. Fans who love the Captain America films will recognize the tone—though this series carves out its own lane with a spy thriller structure that feels separate from the MCU’s other small-screen efforts.

Bridging the gap between film and TV

Long before Disney+ original series turned into the default MCU viewing plan, Agent Carter was still carving a path on its own. Prior to the Disney+ run of original series, it was the only solo female-led MCU story.

It also acted like a bridge—between the early Marvel films and the larger superhero organizations expanding across television. Agent Carter built continuity, fleshed out crucial connections, and traced direct origins of S.H.I.E.L.D. The first season delves deeply into the emotional and mental effects Captain America’s death has on Peggy. giving her the fight to honor his legacy.

By Season 2. romantic adoration from her past is put aside. and Peggy gets a new coworker to fawn over: Daniel Sousa. played by Enver Gjokaj. Even as the series keeps its spy craft front and center. it uses that shift to spotlight character building—making it feel less like a side quest and more like a full MCU chapter.

The show also pulls in larger threads. Anton Vanko, played by Costa Ronin, appears as the father of Iron Man 2 villain Ivan Vanko, portrayed by Mickey Rourke. Hydra is still present as well through Arnim Zola. played by Toby Jones. who shared a prison cell with hypnotist Johann Fennhoff. played by Ralph Brown. Fennhoff was encouraged to rebuild the organization.

One grounded thriller—until the franchise reaches outward

Even with the MCU mythology threading through it, Agent Carter’s setting does the heavy lifting. The historical time period it uses serves as the backdrop for the spy thriller tone.

Compared with Agents of S.H.I.E.L.D., which aired during that same era, Agent Carter is described as being comparatively more grounded in street-level action. Still, Season 2 introduces some cosmic elements in the Atomic Age.

That mix—vibrant comic-book camp paired with action that feels closer to the street—makes it easy to understand why it became a “hidden gem” in the first place.

The ending the MCU hasn’t picked up

It’s also impossible to talk about Agent Carter without landing on the part that lingers. After two seasons, it was cancelled.

It ended on a major cliffhanger, and the MCU has yet to address it. The franchise still hasn’t closed that loop.

Fans have speculated whether the timing worked against it—being a supplement series during Agents of S.H.I.E.L.D.’s hiatus may have intensified superhero fatigue. But the argument for why it deserved more is straightforward: Agent Carter would have thrived as a Disney+ original. especially with the kind of addictive storytelling it already delivers. plus the “just the right amount” of MCU lore needed to keep viewers engaged.

Peggy Carter, still a vital part of the MCU

Led by the exceptional Atwell. Agent Carter gave Peggy the platform to prove she’s always been one of the greatest heroes. Being “ordinary” in the sense that she lacks superhuman or mutant powers doesn’t make her less compelling—it’s what sharpens the series. Her brilliance. her prowess on the field. and her refusal to let people in power silence and take her down are the heart of the show.

And if her story already feels unfinished, the series’ place in the MCU feels secure. The series’ coverage notes that, given how timelines and multiverses work, Peggy Carter will return in Avengers: Doomsday.

Until then, Agent Carter is available to stream on Disney+—and for a weekend binge, it’s still exactly the kind of MCU viewing that rewards attention. The cliffhanger may be waiting. The espionage doesn’t.

Agent Carter Hayley Atwell Peggy Carter MCU Marvel Cinematic Universe Disney+ S.H.I.E.L.D. Edwin Jarvis Daniel Sousa Anton Vanko Arnim Zola Hydra cliffhanger Rotten Tomatoes