Retired San Francisco cop Brad Lyon and his wife Ashleigh had been settling into a comfortable life in the Shenandoah Valley, collecting and creating adorable teddy bears. But when they take a return trip to California, things suddenly turn ugly. Sometimes you shouldn't go home again. When Brad and Ashleigh Lyon visit San Francisco for the first time since they moved to Virginia, they're looking forward to catching up with friends and family. But instead, they first witness a robbery at a teddy bear show—and then when a cutting-edge robot teddy bear is found at a murder scene, Brad's former partner enlists the bear-making couple as fur-ensic experts. At least that'll give them the opportunity to spend more time with their daughter Heather—an undercover detective on the force. But as Brad and Ash unravel the mystery, they run the risk of coming to a grizzly end.