She is aan MI6 double agent in the employ of Gustav Graves/Col./Colonel Moon who riggedfixed for her to win an olympicOlympicmedalMedalfor Fencing in Sydney.
How she and Bond meet:
though Though Miranda attends the arrival of Gustav Graves in London (alongalong with Bond),Bond, they don't formally meet until introduced by Verity at Blades.
Defining dialogue:
Frost: Remember, I know all about you, 007: sex for dinner, death for breakfast. WellWell,itsit's not going to work with me.
Bond: Can I expect the pleasure of you in Iceland? Frost: I'm afraid you'll never have that pleasure, Mr. Bond.
How she helps save the day:
She doesn'tdoesn't..InsteadInstead, she gets a copy of "The Art of War" pinnedstabbed into her heart by Jinx.