New York City is in trouble, but -- fortunately -- it has a handful of heroes willing to rush to its aid. However, according to "Defenders" executive producer Marco Ramirez, finding the right kind of trouble for the team was one of the show's biggest challenges. Nevertheless, he feels though the series has found one that is befitting of Marvel's street-level heroes.

"I can’t describe too much, but I can say that we knew it had to be something big," Ramirez told Entertainment Weekly. "We knew it would take something massive to pull these four characters from their individual worlds to work together, but also small enough that it felt like it existed in our world. It needed to be a crisis that brought these people together, but it still needed to be a very street-level crisis. That’s the world we’re dealing with, so it couldn’t be anything too sci-fi or too supernatural or big. That’s the stuff of the movies."

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As to whether or not the Hand will play a part in this threat, he said, "This should feel like a continuation of all the shows. Not that I’m trying to be cagey, but yeah, we will feel like this is the next step for all four of the shows… This will be a serialized story that feels like it is about one kind of contained event and story in our world. It’ll be one satisfying, self-contained piece."

However, he couldn't comment on whether or not we'll see other familiar heroes return. "I don’t think we should be expecting anything. I gotta be cagey on that too," he said with a laugh.

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“Defenders” will unite Daredevil, Jessica Jones, Luke Cage and Iron Fist under a mutual cause. Although details about the eight-episode series are still scant, we know that Daredevil, Jessica Jones, Luke Cage and Iron Fist first meet at Midland Circle, site of the mysterious hole discovered by Matt Murdock and Elektra in “Daredevil” Season Two, and that Danny Rand “knows really what’s going on.” The implication is that the Hand may have a connection to the threat that brings together the four heroes.

Premiering this summer on Netflix, “Marvel’s The Defenders” stars Charlie Cox, Krysten Ritter, Mike Colter, Finn Jones, Elodie Yung, Deborah Ann Woll, Elden Henson, Carrie-Anne Moss, Eka Darville, Rosario Dawson, Rachael Taylor and Scott Glenn.