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Courtney and the JSA find themselves in the fight of their lives against their biggest threat yet.

DC's Stargirl

Frenemies -- Chapter Thirteen: The Reckoning

As the team devises a plan to deal with their latest threat, Sylvester takes matters into his own hands and leaves Courtney, Pat and the JSA fearing for what comes next.

Frenemies -- Chapter Twelve: The Last Will and Testament of Sylvester Pemberton

As Courtney, Sylvester and the JSA plot to take down a major threat, the arrival of someone from their past sends shockwaves through the town.

Frenemies -- Chapter Eleven: The Haunting

Courtney and the team regroup after a dramatic confrontation leaves battle lines clearly drawn; a terrifying discovery made by Mike and Jakeem forces Pat and Sylvester to go on high alert; Paula and Larry take matters into their own hands.

Frenemies -- Chapter Ten: The Killer

After a recent experience renews Courtney's confidence, she sets out to make amends with those around her; Jakeem puts his foot down after Mike shares his latest plan; Beth makes a major discovery that leads to a terrifying battle no one saw coming.

Frenemies -- Chapter Nine: The Monsters

Desperate to avert a major crisis on their hands, Courtney attempts to help a friend navigate their powers; Pat and The Shade must face their worst fears.

Frenemies -- Chapter Eight: Infinity Inc. Part Two

After Beth makes a major discovery on The Gambler's laptop, the team moves forward with a risky plan that affects the entire town of Blue Valley; Jennie returns and seeks help from Courtney.

Frenemies -- Chapter Seven: Infinity Inc. Part One

After learning that Courtney has been spending time with Cameron, Pat and Barbara go on a mission to see if the Mahkents pose a threat; Sylvester steps in to fill the void left by Courtney; tensions between Yolanda and Cindy reach new heights.

Frenemies -- Chapter Six: The Betrayal

As Courtney continues to secretly help Cameron, the team notices she's pulling away from her role as the JSA leader; Mike and Jakeem approach Cindy with a proposition; Yolanda's decision to follow her intuition leads her to make a shocking discovery.

Frenemies -- Chapter Five: The Thief

After one of Sylvester's plans results in an unexpected outcome, Pat calls upon an old friend for help; Beth uncovers a new suspect in their murder investigation; Courtney reaches out to Cameron.

Frenemies -- Chapter Four: The Evidence

Courtney and the JSA receive an anonymous tip that could help in their murder investigation; Sylvester looks into potential jobs in Blue Valley.

Frenemies -- Chapter Three: The Blackmail

After stumbling upon a suspicious murder in Blue Valley, the JSA begin looking at potential suspects; a tense run-in with The Shade makes Courtney and Pat realize that Sylvester's old ways could land them in hot water.

Frenemies -- Chapter Two: The Suspects

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High school student Courtney Whitmore inspires an unlikely group of young heroes to stop the villains of the past.

S3 E3 | Frenemies -- Chapter Three: The Blackmail