This info from my reading son, aged 10.
FBI agent James Strait, hailed as a national hero for stopping a major terrorist attack, is devastated by a rare disease and forced into disability. Until a child asks him to use his skills to find her missing friend.
Nine-year-old Jophia Williams vanishes on a lonely country road, leaving behind only a blood-soaked dress and a headless teddy bear. Strait discovers the “murder” scene was faked and that other African-American children have also gone missing. As he chases down clues revealing an underworld of violent alt-right fanatics in his hometown, he needs to fight people who will go to any length to stop him, including an incompetent police chief, his conniving superiors at the FBI, and a mysterious stranger on a motorcycle who keeps trying to kill him.
To find Jophia, Strait must also contend with the horrors of his disease and demons from his past. Can he win the race against time to rescue her? Can he save himself?