Big Sky poster

Big Sky

TV Show 2020 7.2 /10
Created by David E. Kelley, C.J. Box

Two determined women team up to crack a chilling crime on a lonely stretch of Montana road. Cassie Dewell, a private investigator, partners with ex detective Jenny Hoyt to track down two sisters snatched by a truck driver. As their hunt unfolds, they realize the disappearances ripple through the... Read more

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Streaming availability last verified: January 14, 2026

About Big Sky

Two determined women team up to crack a chilling crime on a lonely stretch of Montana road. Cassie Dewell, a private investigator, partners with ex detective Jenny Hoyt to track down two sisters snatched by a truck driver. As their hunt unfolds, they realize the disappearances ripple through the region far beyond the initial kidnapping. With time running short, the duo must outsmart an elusive killer while weighing the costs of chasing leads that pull them into a web of danger. The case tests their trust in each other and pushes them to operate in a world where every clue could be a turning point. The tone stays grounded and intimate even as the case widens, focusing on human costs and the resolve of those chasing truth.

Big Sky premiered in 2020 on ABC and was created by David E Kelley alongside CJ Box. The series draws on CJ Box's Cassie Dewell novels, grounding its story in real world crime concerns. Its narrative pace matches the wild terrain and keeps tension high throughout.

Awards: The show has not secured major nominations or wins to date. Its strengths lie in character work and suspense rather than formal recognition, with praise often directed at the performances of its lead actors and the tense plotting.

While not a global phenomenon, Big Sky reflects a shift toward procedural thrillers that pair rugged rural atmosphere with tough minded female leads. Its Montana setting adds texture, and the show sparked discussions about missing persons cases in rural communities and the value of vigilant cooperation.

Reception centers on brisk pacing and strong performances, particularly from Katheryn Winnick and Kylie Bunbury. Viewers respond to the alliance between a private investigator and a former cop, and to the show's exploration of trust, resilience, and moral ambiguity in crisis situations. It remains accessible without diluting its grit too.

Details

Release Date
November 17, 2020
User Ratings
286 votes
Type
TV Series
Seasons
3
Episodes
47
Genres
Crime, Drama, Mystery

Official Trailer

Cast

Katheryn Winnick

Katheryn Winnick

Jenny Hoyt

Kylie Bunbury

Kylie Bunbury

Cassie Dewell

Dedee Pfeiffer

Dedee Pfeiffer

Denise Brisbane

J. Anthony Pena

J. Anthony Pena

Deputy Mo Poppernak

Jensen Ackles

Jensen Ackles

Beau Arlen

Jamie-Lynn Sigler

Jamie-Lynn Sigler

Tonya Wallis

Created by: David E. Kelley, C.J. Box

Seasons (3 seasons, 47 episodes)

Season 1

Season 1

16 episodes - 2020

Season 2

Season 2

18 episodes - 2021

Deadly Trails

Deadly Trails

13 episodes - 2022

Frequently Asked Questions

Big Sky is available to stream on Hulu. You can also rent or buy it on Apple iTunes, Google Play, Vudu, and Amazon Video.

Yes, Big Sky is available to stream on Hulu.

Yes, you can buy on Apple iTunes, Google Play, Vudu, and Amazon Video.

Big Sky has 3 seasons with a total of 47 episodes.

With a rating of 7.2/10 from 286 viewers, Big Sky is well-regarded and recommended by viewers.

Two determined women team up to crack a chilling crime on a lonely stretch of Montana road. Cassie Dewell, a private investigator, partners with ex detective Jenny Hoyt to track down two sisters snatched by a truck driver. As their hunt unfolds, they realize the disappearances ripple through the ...

Big Sky stars Katheryn Winnick, Kylie Bunbury, Dedee Pfeiffer, J. Anthony Pena, and Jensen Ackles.

Big Sky was created by David E. Kelley and C.J. Box.

Big Sky was released on November 17, 2020.

Big Sky is a Crime, Drama, and Mystery series.

Big Sky isn't a straight true story; it's inspired by CJ Box's novel The Highway. The show follows private detective Cassie Dewell (Kylie Bunbury) and ex-cop Jenny Hoyt (Katheryn Winnick) as they hunt for missing sisters in Montana.

Jenny Hoyt is played by Katheryn Winnick and Cassie Dewell is played by Kylie Bunbury.

Private detective Cassie Dewell (Kylie Bunbury) teams with ex-cop Jenny Hoyt (Katheryn Winnick) to find two sisters kidnapped on a Montana highway, only to uncover a wider pattern of disappearances.

Big Sky has 3 seasons and 47 episodes.