hot on the trail
hot on the trail (of someone or something)
Very closely or aggressively following, pursuing, or tracking someone or something. Police are hot on the trail of two armed men who held up a liquor store late last night. A: "We've got to find those stolen goods." B: "Our top detective is hot on the trail, sir."
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
hot on the trail (of someone, some creature, or something)
Fig. very close to finding or catching up with someone, some creature, or something. I am hot on the trail of the book that I have been seeking for months.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.