Cowboy, Undercover - Lazy S Ranch, #4

Beat, battered, bruised. Oh.and shot. Yeah, his job was a killer. It's not just the bullets that could kill him, the lies might, too. Recovering at Healing Horses therapy program, former Marine and undercover ATF Special Agent Gil Brant is ready to turn over a new leaf. And his badge and gun. But when a gun bust goes bad, catching his former handler in the crossfire, Gil can't quit until he finds justice.
Against his better judgment, he goes back undercover one last time. For task force helo pilot, Tessa Sterling, her clear skies turn cloudy when her ex-husband moves cross country demanding visitation with their young son. There's a reason she'd been granted sole custody, but in small towns, money talks. When a moment of indiscretion with fellow task force member, Gil Brant, upends her world, she is forced back into a life she's fought hard to escape. Danger brews and thousands of innocent lives are at stake. Can Tessa and Gil stop the threat? Or will the lies and layers of deceit bring them crashing down? Updated cover.
Same great read.