Scott and the team race against the clock to wrap up the investigation before anyone else gets hurt.

Scott's investigation has fatal consequences, and threats from hired hitmen land at his doorstep.

As violence starts to spill across the border, Scott teams up with an unlikely partner to bring down the cartel's operation from the inside.

Rookie FBI agent Scott Lawson follows through on a hunch—and uncovers a shocking connection within U.S. horse racing.