swoop in

“When the count was favorable, they would signal the “big player,” usually Uston in some sort of disguise, who would swoop in and make an enormous bet.”

Simon & Schuster: One of a Kind

“Rumors reached him that a raiding party off a British frigate, known to be sailing in the Gulf of Maine, would swoop in to burn the America as she stood on the stocks.”

Simon & Schuster: John Paul Jones

“But like many others, she also looked up and around at the sky and rooftops, wondering which hero would swoop in to save the day: Breezeway?”

Simon & Schuster: Songs of Love & Death