The biggest action show is almost back. Starting on February 20, Reacher Season 3 will put its titular hero, Jack Reacher (Alan Ritchson), in a new undercover operation with some very dangerous people. Based on Lee Child's seventh book in the series, Persuader , originally published in 2003, the new season promises to deliver the show's signature intrigue, fast pacing, and action. But, the heart of a good Reacher story is always the mystery. And for those who have read Persuader...