Actor Robert Downey Jr., who plays Tony Stark, the man inside the "Ironman" suit, takes you behind the scenes of "Iron Man 3" to see how the iconic armor has evolved from the original Mark I all the way to the new Mark XLII.
See why Downey says, "Tony's personal journey and the journey of his technology are, I think, second to none."
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Now see how 341-pound Jeeves Urquhart is working toward the day when he can fit into a superhero suit of his own! Watch the latest episode of "Zero to Superhero," the inspiring new reality series from WND-TV.