Elise Butler is a wildlife biologist who enjoys her stable (if somewhat predictable) job in finance at the World Wildlife Trust. However, when the veterinarian at Riverbend Animal Conservation Center goes missing, Elise offers to help the unlucky wildlife Conservation Center get back on its feet. Not only will the job in Riverbend, Indiana let her get back to her roots of working with animals, but it's also a short drive from her sister's workplace at Riverbend K-9 Academy, a training center for some of the FBI's best explosive detection dogs.

FBI Special Agent Finn Cooper and his canine partner, Sedona, are chasing a well-funded animal trafficking ring. After an injury sidelines Finn from official FBI undercover work, he goes to work at Riverbend K-9 Academy to stay busy while he recovers...and to investigate his only remaining lead in the animal trafficking case.

Just as Elise begins to settle into life in Riverbend, her sister asks her to help the K-9 Academy by fostering one of their puppies. Finn is eager to keep Elise focused on training Zeke, the enthusiastic German shepherd puppy earmarked to become Riverbend's first wildlife detection K-9, and keep her well away from his quiet animal trafficking investigation. Zeke quickly proves himself an expert both at chewing shoes and sniffing out clouded leopards. When Zeke starts finding scents where they don't belong, Elise and Finn begin to realize that the Conservation Center may be more criminal than unlucky. And if Elise doesn't keep her nose out of it, she might be the next target.

An Ear for Trouble is Book 2 in the Riverbend K-9 Series. All books in the Riverbend K-9 Series may be enjoyed as standalone novels or as a series.