on the trail(redirected from get on the track of someone or something)
on the trail of (someone or something)
Following, pursuing, or tracking someone or something. Police are on the trail of two armed men who held up a liquor store late last night. Our top detective is on the trail of the stolen goods, sir.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
*on the trail (of someone or something)and *on the track of someone or something
seeking someone or something; about to find someone or something. (*Typically: be ~; get ~.) I'm on the trail of a new can opener that is supposed to be easier to use. I spent all morning on the track of a vendor who can meet our requirements.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.