When Colter finds a lost dog at a gas station in Denver and the dog is subsequently stolen from his truck, Colter makes it his mission to track him down and reunite him with his family.
Colter is tasked with tracking down a "ghost" when hired to find a man who seemingly died in a car accident months earlier. Meanwhile, Colter catches a break in his white whale case.
A new lead in Colter's white whale case, the disappearance of Gina Picket, brings him and retired cop Keaton back together to track down a serial killer.
Colter recruits fellow rewardist Billie Matalon to infiltrate a women's prison in order to gain access to critical information that would help track down an escaped prisoner and her hostage.
Colter helps an old friend with a search and rescue mission for two missing sisters in the snowy Montana wilderness. Reenie gets a visit from a new client that challenges her morality.
Colter heads to Willow Creek, Mich., after a worried mother hires him to track down her beauty queen daughter, Riley, who vanished while driving home from work. While investigating at the garden center where Riley works, Colter looks into her modeling past and uncovers that she was hiding a major secret.
Reenie urgently calls Colter for help when Leonard Sharf's assistant gets kidnapped ahead of the launch of his new business. Also, Colter visits his sister, Dory.
