A gripping military and crime thriller by David Baldacci, first published in 2016. It is the fourth novel in the John Puller and follows the U.S. Army's elite investigator as he tackles one of the most personal cases of his career.

When John Puller learns that his aunt has died under suspicious circumstances in the small town of Drake, West Virginia, he travels there to settle her affairs. What begins as a family visit soon turns into a murder investigation after Puller discovers evidence suggesting her death was no accident.

As he digs deeper, Puller uncovers long-buried secrets connected to a decades-old military mystery involving his father, a decorated war hero imprisoned for treason. The case also leads him to a mysterious woman whose identity and past are intertwined with Cold War espionage, hidden government operations, and a dangerous conspiracy that powerful people are determined to keep buried.

Working against corrupt local officials, hired killers, and shadowy intelligence figures, Puller must rely on his military training, investigative instincts, and unwavering sense of justice to expose the truth. The novel combines methodical detective work with explosive action, creating a suspenseful blend of military thriller, mystery, and espionage.

Unlike some of Baldacci's more action-driven novels, No Man's Land places greater emphasis on family history, personal redemption, and uncovering hidden truths, making it one of the most emotionally resonant entries in the John Puller series.