From Spider-Man News:
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The clip itself opens with Spider-Man talking to Happy Hogan, who has come to deliver him a briefcase that comes directly from Tony Stark himself. With the briefcase is a note, reading, “A small upgrade. T.S. (Tony Stark). It then cuts to a scene with Spidey on top of the Washington Monument, with a helicopter in the background. Spider-Man jumps off, letting loose his new Web wings.