S03E10: Frenemies - Chapter Ten: The Killer
Courtney and the team regroup after a confrontation leaves battle lines clearly drawn. A terrifying discovery made by Mike and Jakeem forces Pat and Sylvester to go on high alert.
Previous Episode 
Season 1
Pilot
S1E1 / 18 May 2020
S.T.R.I.P.E.
S1E2 / 25 May 2020
Icicle
S1E3 / 01 Jun 2020
Wildcat
S1E4 / 08 Jun 2020
Hourman and Dr. Mid-Nite
S1E5 / 15 Jun 2020
The Justice Society
S1E6 / 22 Jun 2020
Shiv (1)
S1E7 / 29 Jun 2020
Shiv (2)
S1E8 / 06 Jul 2020
Brainwave
S1E9 / 13 Jul 2020
Brainwave Jr.
S1E10 / 20 Jul 2020
Shining Knight
S1E11 / 27 Jul 2020
Stars & S.T.R.I.P.E. (1)
S1E12 / 03 Aug 2020
Stars & S.T.R.I.P.E. (2)
S1E13 / 10 Aug 2020
Season 2
Summer School: Chapter One
S2E1 / 10 Aug 2021
Summer School: Chapter Two
S2E2 / 17 Aug 2021
Summer School: Chapter Three
S2E3 / 24 Aug 2021
Summer School: Chapter Four
S2E4 / 31 Aug 2021
Summer School: Chapter Five
S2E5 / 07 Sep 2021
Summer School: Chapter Six
S2E6 / 14 Sep 2021
Summer School: Chapter Seven
S2E7 / 21 Sep 2021
Summer School: Chapter Eight
S2E8 / 28 Sep 2021
Summer School: Chapter Nine
S2E9 / 05 Oct 2021
Summer School: Chapter Ten
S2E10 / 12 Oct 2021
Summer School: Chapter Eleven
S2E11 / 19 Oct 2021
Summer School: Chapter Twelve
S2E12 / 26 Oct 2021
Summer School: Chapter Thirteen
S2E13 / 02 Nov 2021
Season 3
Frenemies - Chapter One: The Murder
S3E1 / 31 Aug 2022
Frenemies - Chapter Two: The Suspects
S3E2 / 07 Sep 2022
Frenemies - Chapter Three: The Blackmail
S3E3 / 14 Sep 2022
Frenemies - Chapter Four: The Evidence
S3E4 / 21 Sep 2022
Frenemies - Chapter Five: The Thief
S3E5 / 05 Oct 2022
Frenemies - Chapter Six: The Betrayal
S3E6 / 12 Oct 2022
Frenemies - Chapter Seven: Infinity Inc. (1)
S3E7 / 19 Oct 2022
Frenemies - Chapter Eight: Infinity Inc. (2)
S3E8 / 26 Oct 2022
Frenemies - Chapter Nine: The Monsters
S3E9 / 02 Nov 2022
Frenemies - Chapter Ten: The Killer
S3E10 / 09 Nov 2022
Frenemies - Chapter Eleven: The Haunting
S3E11 / 16 Nov 2022
Frenemies - Chapter Twelve: The Last Will and Testament of Sylvester Pemberton
S3E12 / 30 Nov 2022
Frenemies - Chapter Thirteen: The Reckoning
S3E13 / 07 Dec 2022
Brec Bassinger
Courtney Whitmore / Stargirl
Yvette Monreal
Yolanda Montez / Wildcat
Anjelika Washington
Beth Chapel / Dr. Mid-Nite
Cameron Gellman
Rick Tyler / Hourman
Trae Romano
Mike Dugan
Meg DeLacy
Cynthia 'Cindy' Burman / Shiv
Alkoya Brunson
Jakeem Williams
