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What is the Iron Fist? Netflix shows us in an action-packed trailer for its latest Marvel series starring Finn Jones as the hard-punching hero.

“Marvel’s Iron Fist” premieres March 17 on the streaming service. Jone stars as Danny Rand, who after being missing for 15 years returns to New York City. As you can see from the trailer, guards at the family’s corporation initially think he’s a homeless man.

The corporate bosses don’t want him around, either.

“Rand is my company,” says Harold Meachum (David Wenham), an oily executive at Rand Enterprises.

Later in the clip, Madame Gao (Wa Ching Ho) says, “This city is no place for Danny Rand.”

Netflix teases, “when a long-destined enemy rises in New York, this living weapon is forced to choose between his family’s legacy and his duties as the Iron Fist.” Is that enemy Meacham, Gao or someone we don’t see in the trailer?

Whoever the Big Bad is, Danny, aka Iron Fist, is going to fighting—a lot.

“It’s super intense,” Jones told me last fall. “We were doing a new fight every week. … It’s a lot of work being a Marvel television superhero!”

Jones also said “Iron Fist,” like all the Marvel series on Netflix, examines social issues and societal ills.

“What we are looking at is corporate responsibility and looking at the 1 percent of the 1 percent and where power lies and all of that,” he said. “That’s really interesting.”

The trailer also gives us looks at Jessica Henwick as Colleen Wing, who partners with Danny. Rosario Dawson, who plays nurse Claire Temple in all the Marvel shows on Netflix, is back. Carrie-Ann Moss also returns to the Marvel universe as attorney Jeri Hogarth. Jessica Stroup plays Joy Meachum and Tom Pelphrey is Ward Meachum. Scott Buck serves as showrunner and exec producer. Jeph Loeb, Marvel’s Head of Television, is an executive producer.

“Iron Fist” will be followed by the debut of Netflix’s “The Defenders” series this summer. That series teams Iron Fist, Daredevil, Jessica Jones and Luke Cage against a new threat in New York City.

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