Rocky Mountain K9 Unit Books in Order
Part ofKatie Ruggle Books in OrderFind the Rocky Mountain K9 Unit books in order by Katie Ruggle, with short summaries, series background, character notes, and where to start.
Last updated: June 8, 2026
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Publication Order
4 books
On the Chase
by Katie Ruggle
2017
After witnessing a horrifying crime, Kaylee Ramay hides in the Rockies under a new name. K9 officer Hugh Murdoch is drawn to her immediately, and when a sniper takes aim, her secrets become impossible to keep.
Run to Ground
by Katie Ruggle
2017
Grieving K9 officer Theo Bosco wants nothing to do with complications, but Juliet Jackson and her younger siblings keep pulling him in. When the threat chasing Jules reaches Monroe, Theo and his new dog have to stand and fight.
Survive the Night
by Katie Ruggle
2018
Sarah Clifton is desperate to escape the crime family that has controlled her life, and gentle giant Otto Gunnersen may be her first real chance. With her ruthless brother closing in, hiding is no longer enough.
Through the Fire
by Katie Ruggle
2018
New K9 officer Kit Jernigan struggles to earn trust in a unit that has already been battered by betrayal. Teaming up with lone fire spotter Wesley March, she hunts a killer whose grudge has turned deeply personal.
Series background & context
The Rocky Mountain K9 Unit books move the action to Monroe, Colorado, but keep the same mix of suspense, warmth, and rugged mountain atmosphere. This series follows police officers and their dogs as they protect women in danger, hunt killers, and try to build something steady in a town that keeps attracting trouble. Each novel focuses on a different couple, but the emotional threads and outside threats carry from one book to the next.
The dogs matter here. They are not cute window dressing or an afterthought. The K9 partners work, track, alert, comfort, and occasionally help shove very stubborn humans in the right direction. That gives the series a grounded, day-to-day rhythm, police work, kennel chores, training, patrol, and small-town life, even when the danger level is climbing.
It starts with Run to Ground, where grieving officer Theo Bosco is pulled into Juliet Jackson's fight to keep her younger siblings safe. On the Chase pairs recovering officer Hugh Murdoch with Kaylee Ramay, a witness hiding under a false identity. Survive the Night brings in gentle, animal-loving Otto Gunnersen and Sarah Clifton, who is trying to escape a violent criminal family. Through the Fire closes the set with new officer Kit Jernigan and fire spotter Wesley March as old wounds, and old enemies, refuse to stay buried.
The dogs are heroes, but the people are a mess in the best way.
That is really the appeal. Monroe feels like a place full of odd, decent people who keep choosing each other. The books are protective and often sweet, but never sleepy. There are snipers, stalkers, criminal family ties, betrayals, and long memories. At the same time, there is humor, community gossip, and a strong sense that this town will rally around its own.
If you want romantic suspense that balances danger with comfort, this is a great series to pick up. Read it for the working dogs, the on-the-run heroines, the quietly devoted officers, and the way each book widens the circle while pushing the larger story forward.
Edited by
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