FERRET

to bring to light by an extensive search

/search and discover through persistent investigation

"She ferreted out the truth."

"He had worried about the possibility that someone might attempt to ferret their clandestine operation."

"It was only becuase of his willingness to ferret for the true story that the right poeple are now behind bars."

"He knew that there was something sinister underneath all of this, now his goal was to ferret that plot so that the whole world could see."