Agent Carter’s second season is set to include the extra-dmiensional force know as the Darkforce. This is a energy that has gone on to power numerous hero’s and villains in the Marvel Comics. In the MCU it powered Blackout in Season 1 of S.H.I.E.L.D. and has ties to Doctor Strange. During a Interview with Comicbook Resources Agent Carter show runners had this to say.
When asked if Isodyne Energy is connected to the Darkforce, Fazekas answered affirmatively. “Basically, Isodyne is a company that we invented based in part on real life companies like Radiodyne or General Atomic or the beginnings of the Jet Propulsion Lab — all of which were in L.A. in the ’40s, and were developing the space program and were developing nukes,” explained Fazekas. “That’s what Isodyne is, and what you’ll learn is they were involved in the nuclear testing out in the desert when they were testing the, at the time they were calling it the atom bomb — and one of these tests didn’t go as expected. You’ll learn more about that in Season 2, but they stumble upon what people in the Marvel Universe will know as Darkforce, but because they’ve never seen it before they just name it Zero Matter. That’s our tie-in to the ‘Doctor Strange’ universe, and also to ‘S.H.I.E.L.D.’ because you’ve seen it in ‘S.H.I.E.L.D.’ as well.”
“The cool thing about what we learned as we researched Darkforce over the course of Marvel comic book history is, it affects people in different ways,” explained Fazekas. “It’s created a bunch of superheroes, it’s created a bunch of villains, and it has all these different properties. It could be a liquid, it could be a gas, it could be a solid, it could give you powers, it could kill you. It has a lot of different applications, which was cool for us. We were able to select what we liked and sort of make our own rules as to what it does, how it operates, and who it affects in our world.”