S01E21: Unsolvable
On a solving streak, Jake decides to spend his weekend off with Sgt. Terry trying to crack a cold case that no one thinks can be solved.
Previous Episode 
Season 1
Pilot
S1E1 / 17 Sep 2013
The Tagger
S1E2 / 24 Sep 2013
The Slump
S1E3 / 01 Oct 2013
M.E. Time
S1E4 / 08 Oct 2013
The Vulture
S1E5 / 15 Oct 2013
Halloween
S1E6 / 22 Oct 2013
48 Hours
S1E7 / 05 Nov 2013
Old School
S1E8 / 12 Nov 2013
Sal's Pizza
S1E9 / 19 Nov 2013
Thanksgiving
S1E10 / 26 Nov 2013
Christmas
S1E11 / 03 Dec 2013
Pontiac Bandit
S1E12 / 07 Jan 2014
The Bet
S1E13 / 14 Jan 2014
The Ebony Falcon
S1E14 / 21 Jan 2014
Operation: Broken Feather
S1E15 / 02 Feb 2014
The Party
S1E16 / 04 Feb 2014
Full Boyle
S1E17 / 11 Feb 2014
The Apartment
S1E18 / 25 Feb 2014
Tactical Village
S1E19 / 04 Mar 2014
Fancy Brudgom
S1E20 / 11 Mar 2014
Unsolvable
S1E21 / 18 Mar 2014
Charges and Specs
S1E22 / 25 Mar 2014
Season 2
Undercover
S2E1 / 28 Sep 2014
Chocolate Milk
S2E2 / 05 Oct 2014
The Jimmy Jab Games
S2E3 / 12 Oct 2014
Halloween II
S2E4 / 19 Oct 2014
The Mole
S2E5 / 02 Nov 2014
Jake and Sophia
S2E6 / 09 Nov 2014
Lockdown
S2E7 / 16 Nov 2014
USPIS
S2E8 / 23 Nov 2014
The Road Trip
S2E9 / 30 Nov 2014
The Pontiac Bandit Returns
S2E10 / 07 Dec 2014
Stakeout
S2E11 / 14 Dec 2014
Beach House
S2E12 / 04 Jan 2015
Payback
S2E13 / 11 Jan 2015
The Defense Rests
S2E14 / 25 Jan 2015
Windbreaker City
S2E15 / 08 Feb 2015
The Wednesday Incident
S2E16 / 15 Feb 2015
Boyle-Linetti Wedding
S2E17 / 01 Mar 2015
Captain Peralta
S2E18 / 08 Mar 2015
Sabotage
S2E19 / 15 Mar 2015
AC/DC
S2E20 / 26 Apr 2015
Det. Dave Majors
S2E21 / 03 May 2015
The Chopper
S2E22 / 10 May 2015
Johnny and Dora
S2E23 / 17 May 2015
Season 3
New Captain
S3E1 / 27 Sep 2015
The Funeral
S3E2 / 04 Oct 2015
Boyle's Hunch
S3E3 / 11 Oct 2015
The Oolong Slayer
S3E4 / 18 Oct 2015
Halloween III
S3E5 / 25 Oct 2015
Into the Woods
S3E6 / 08 Nov 2015
The Mattress
S3E7 / 15 Nov 2015
Ava
S3E8 / 22 Nov 2015
The Swedes
S3E9 / 06 Dec 2015
Yippie Kayak
S3E10 / 13 Dec 2015
Hostage Situation
S3E11 / 05 Jan 2016
9 Days
S3E12 / 19 Jan 2016
The Cruise
S3E13 / 26 Jan 2016
Karen Peralta
S3E14 / 02 Feb 2016
The 9-8
S3E15 / 09 Feb 2016
House Mouses
S3E16 / 16 Feb 2016
Adrian Pimento
S3E17 / 23 Feb 2016
Cheddar
S3E18 / 01 Mar 2016
Terry Kitties
S3E19 / 15 Mar 2016
Paranoia
S3E20 / 29 Mar 2016
Maximum Security
S3E21 / 05 Apr 2016
Bureau
S3E22 / 12 Apr 2016
Greg and Larry
S3E23 / 19 Apr 2016
Season 4
Coral Palms (1)
S4E1 / 20 Sep 2016
Coral Palms (2)
S4E2 / 27 Sep 2016
Coral Palms (3)
S4E3 / 04 Oct 2016
The Night Shift (I)
S4E4 / 11 Oct 2016
Halloween IV
S4E5 / 18 Oct 2016
Monster in the Closet
S4E6 / 15 Nov 2016
Mr. Santiago
S4E7 / 22 Nov 2016
Skyfire Cycle
S4E8 / 29 Nov 2016
The Overmining
S4E9 / 06 Dec 2016
Captain Latvia
S4E10 / 13 Dec 2016
The Fugitive (1)
S4E11 / 01 Jan 2017
The Fugitive (2)
S4E12 / 01 Jan 2017
The Audit
S4E13 / 11 Apr 2017
Serve & Protect
S4E14 / 18 Apr 2017
The Last Ride
S4E15 / 25 Apr 2017
Moo Moo
S4E16 / 02 May 2017
Cop-Con
S4E17 / 09 May 2017
Chasing Amy
S4E18 / 09 May 2017
Your Honor
S4E19 / 16 May 2017
The Slaughterhouse
S4E20 / 16 May 2017
The Bank Job
S4E21 / 23 May 2017
Crime & Punishment
S4E22 / 23 May 2017
Season 5
The Big House (1)
S5E1 / 26 Sep 2017
The Big House (2)
S5E2 / 03 Oct 2017
Kicks
S5E3 / 10 Oct 2017
HalloVeen
S5E4 / 17 Oct 2017
Bad Beat
S5E5 / 07 Nov 2017
The Venue
S5E6 / 14 Nov 2017
Two Turkeys
S5E7 / 21 Nov 2017
Return to Skyfire
S5E8 / 28 Nov 2017
99
S5E9 / 05 Dec 2017
Game Night
S5E10 / 12 Dec 2017
The Favor
S5E11 / 12 Dec 2017
Safe House
S5E12 / 18 Mar 2018
The Negotiation
S5E13 / 25 Mar 2018
The Box
S5E14 / 01 Apr 2018
The Puzzle Master
S5E15 / 08 Apr 2018
NutriBoom
S5E16 / 15 Apr 2018
DFW
S5E17 / 15 Apr 2018
Gray Star Mutual
S5E18 / 22 Apr 2018
Bachelor/ette Party
S5E19 / 29 Apr 2018
Show Me Going
S5E20 / 06 May 2018
White Whale
S5E21 / 13 May 2018
Jake & Amy
S5E22 / 20 May 2018
Season 6
Honeymoon
S6E1 / 10 Jan 2019
Hitchcock & Scully
S6E2 / 17 Jan 2019
The Tattler
S6E3 / 24 Jan 2019
Four Movements
S6E4 / 31 Jan 2019
A Tale of Two Bandits
S6E5 / 07 Feb 2019
The Crime Scene
S6E6 / 14 Feb 2019
The Honeypot
S6E7 / 21 Feb 2019
He Said, She Said
S6E8 / 28 Feb 2019
The Golden Child
S6E9 / 07 Mar 2019
Gintars
S6E10 / 14 Mar 2019
The Therapist
S6E11 / 21 Mar 2019
Casecation
S6E12 / 11 Apr 2019
The Bimbo
S6E13 / 18 Apr 2019
Ticking Clocks
S6E14 / 25 Apr 2019
Return of the King
S6E15 / 02 May 2019
Cinco de Mayo
S6E16 / 09 May 2019
Sicko (1)
S6E17 / 16 May 2019
Suicide Squad (2)
S6E18 / 16 May 2019
Season 7
Manhunter
S7E1 / 06 Feb 2020
Captain Kim
S7E2 / 06 Feb 2020
Pimemento
S7E3 / 13 Feb 2020
The Jimmy Jab Games II
S7E4 / 20 Feb 2020
Debbie
S7E5 / 27 Feb 2020
Trying
S7E6 / 05 Mar 2020
Ding Dong
S7E7 / 12 Mar 2020
The Takeback
S7E8 / 19 Mar 2020
Dillman
S7E9 / 26 Mar 2020
Admiral Peralta
S7E10 / 02 Apr 2020
Valloweaster
S7E11 / 09 Apr 2020
Ransom
S7E12 / 16 Apr 2020
Lights Out
S7E13 / 23 Apr 2020
Season 8
The Good Ones
S8E1 / 12 Aug 2021
The Lake House
S8E2 / 12 Aug 2021
Blue Flu
S8E3 / 19 Aug 2021
Balancing
S8E4 / 19 Aug 2021
PB&J
S8E5 / 26 Aug 2021
The Set Up
S8E6 / 26 Aug 2021
Game of Boyles
S8E7 / 02 Sep 2021
Renewal
S8E8 / 02 Sep 2021
The Last Day
S8E9 / 16 Sep 2021
Andy Samberg
Jake Peralta
Melissa Fumero
Amy Santiago
Terry Crews
Terry Jeffords
Joe Lo Truglio
Charles Boyle
Stephanie Beatriz
Rosa Diaz
Andre Braugher
Raymond Holt
Dirk Blocker
Michael Hitchcock
