FBI K-9 handler Meg Jennings can never walk away from her job, even amid her Hawaiian Islands honeymoon, where she and her search-and-rescue black Lab encounter a double threat from wildlife poachers and Mother Nature.

After a difficult assignment and the excitement of her wedding to firefighter Todd Webb, Meg is more than ready for two weeks of sun, sea, and gorgeous Hawaiian scenery. Her K-9 partner, Hawk, accompanies Meg and Todd to their resort, reveling in his celebrity status with both staff and guests. After a week of relaxation, all three are ready to get out into nature on the Big Island, where Meg and Hawk can practice search strategies.

In the remote fern forest of Pu‘u Maka‘ala Natural Area Reserve, Hawk’s senses are on high alert. When Meg lets him leave the path, they encounter two men trapping bright birds. The poachers escape, leaving their bounty behind, and when agents from the FBI and US Fish and Wildlife arrive, they confirm that the birds are all endangered species near extinction. Super-wealthy collectors acquire them for private zoos, with no regard for the birds’ survival. Alive or dead, these beautiful creatures are merely trophies.

Meg, Todd, and Hawk join an official search using a local conservation dog to pinpoint vulnerable nesting grounds in an attempt to protect trafficked wildlife and to stop the poachers in their tracks. But beyond the threat posed by determined poachers lurks another danger—Mauna Loa, one of the island’s active volcanoes, has been grumbling, and is poised to turn this mission into their most terrifying yet.