Joey Armstrong does not merely distrust his sister. He watches Heather as if she is a threat capable of reopening the most painful chapter of his life. His decision to place her under surveillance—and his warning that he would kill her if Vanessa were harmed—reveals a level of fear that cannot be explained by an ordinary sibling estrangement.
Heather insists that she returned to rebuild their relationship, but Joey does not believe her. He assumes every friendly gesture hides another objective. When she approaches Vanessa, Dani, Smitty, or anyone connected to his life, Joey immediately expects manipulation. His reaction suggests that Heather has crossed his boundaries before—and that someone Joey loved may already have paid the price.
The foundation of their conflict lies in the Armstrong family’s violent history. Joey previously told Vanessa that his father came from New York and trained him as an apprentice. After Joey challenged him, his father began beating him. The abuse continued until Joey became strong enough to fight back and permanently stop it, although he specifically denied killing his father.
That childhood revelation becomes even more disturbing when Heather’s position in the family is considered. Joey said their father appeared respectable to outsiders and treated Heather as the apple of his eye. While Joey absorbed the man’s violence, Heather received his affection. The same father who terrorized one child seemingly encouraged the other to see him as a powerful protector.
Joey also admitted that Heather was too much like their father. She wanted to join the family business, but Joey refused to allow it. That detail changes the meaning of their estrangement. Joey may not have been trying to control Heather. He may have been desperately attempting to save his little sister from becoming part of the criminal world that had already stolen his childhood.
Heather clearly did not follow his warning. She grew into The Impaler, the ruthless figure behind an international operation involving blood and plasma. Instead of escaping their father’s influence, she appears to have embraced it. Her willingness to dirty her own hands distinguishes her from Joey, who usually orders other people to carry out his violence.
Their confrontation exposed that divide. Heather argued that she and Joey were fundamentally the same because both profited from fear and bloodshed. Joey rejected that comparison, insisting that he still had limits Heather would never respect. The exchange sounded less like a disagreement between rival criminals and more like an old argument that began inside their father’s home.
The most explosive possibility is that Heather chose their father over Joey. She could have dismissed Joey’s account of the abuse because their father treated her differently. She may even have viewed Joey’s eventual rebellion as a betrayal of the family. If their father offered Heather a place in his organization, she could have accepted the power Joey wanted her to reject.
That would explain how Heather eventually created—or inherited—the network behind The Impaler. Their father may have maintained contacts in crime, medicine, transportation, or international trafficking. After he disappeared, Heather could have taken control of those relationships and expanded them into her own empire. Joey would then see The Impaler not as a separate criminal threat but as the continuation of everything his father represented.
The father’s ultimate fate remains the missing piece. Joey said he stopped the beatings permanently, but he did not explain what happened afterward. He denied killing the man, leaving open the possibility that someone else did. Heather could have killed their father to seize his organization, eliminate a liability, or prove that she was even more ruthless than he was.
If Heather murdered him for power, Joey would have every reason to fear her. He might have watched his sister transform from the favored child into the family’s new monster. Cutting contact would become an act of survival, especially if Heather believed Joey’s knowledge of the crime made him a threat to her control.
Another possibility is that Heather allowed their father to disappear and then blamed Joey. She might know what Joey did during their final confrontation and have protected that secret for years. Their estrangement could therefore be built on mutual blackmail: Joey knows how Heather acquired the empire, while Heather knows exactly how he ended their father’s abuse.
Heather’s manipulation of Vanessa proves Joey’s anxiety is justified. She pretended to drink while secretly pouring away her alcohol, deliberately got Vanessa intoxicated, and questioned her about Doug’s death. Heather did not behave like a sister hoping to earn trust. She behaved like an operator collecting information about the one person capable of making Joey vulnerable.
That information could become Heather’s most devastating weapon. If she discovers Joey intercepted Doug’s final warning to Vanessa or played a role in his death, she can destroy Joey’s relationship without touching Vanessa physically. Joey’s threat to kill Heather would mean nothing once Vanessa learns the man who comforted her also concealed the truth about her husband.
Beyond the Gates has not confirmed that Heather killed their father, inherited his operation, or directly caused the original estrangement. Those conclusions remain theory. What the show has established is that Joey was abused, Heather was their father’s favorite, she wanted the family business, and she eventually became a criminal more brutal than her brother.
Joey may believe he escaped the man who beat him, but Heather’s return proves that the past never released him. She carries their father’s methods, appetite for control, and capacity for violence. When the truth about the Armstrong patriarch finally explodes, Joey could discover that his father’s darkest legacy was never the empire he created—it was the daughter who became him.
