Season 3: Big Sky -

serves as the third and final installment of the ABC crime drama, originally premiering on September 21, 2022. This season shifted into a more procedural format, focusing on a primary case involving a mysterious backcountry hiking trip while also tackling smaller weekly mysteries. Plot and New Mysteries

: The investigation eventually links to a 20-year-old cold case known as the "Bleeding Heart" murder, forcing the team to confront a long-hidden serial killer. Cast and Key Characters Big Sky - Season 3

: When a backpacker disappears and a local hiking trip goes awry, the investigators discover a trail of murders and realize that no one at the campsite can be fully trusted. serves as the third and final installment of

The third season introduced significant changes to the ensemble, adding star power through new series regulars: Cast and Key Characters : When a backpacker

Big Sky- Season 3, A Review - Ramblings of a Supposed Writer

: The primary arc centers on Sunny Day Excursions , a glamping company led by the charismatic yet secretive Sunny Barnes (Reba McEntire).