Episodes 01
“Department of Dirty Tricks”
The CIA tasks The Boys to assassinate Victoria Neuman, but the mission goes awry when they are discovered by her superpowered daughter, Zoe, who attacks the group. Ryan learns that Butcher has approximately six months to live. At CIA headquarters, Butcher reunites with Joe Kessler, an old friend, who attempts to recruit him to take down the Supes. Homelander, obsessed with his aging and fed up with his sycophant group, recruits Sister Sage (known for being the smartest person on the planet) to join The Seven. He and Sage have three supporters beaten to death, including Monique’s ex-boyfriend Todd. Sage instigates a riot outside the courthouse when Homelander is found “not guilty”; A-Train dumps the corpses of Homelander’s supporters into the riot, ensuring the Starlighters are blamed. Butcher arranges a meeting with Neuman for the Red River files but changes his mind at the last second after having a hallucination of his deceased wife, Becca. Hughie learns his father has suffered a stroke and reunites with his mother.
Episodes 02
“Life Among the Septics”
Butcher tells The Boys his remaining time to live and is kicked out. However, Butcher tracks them and helps them to spy on Sage, who is recruiting alt-right Supe Firecracker at TruthCon. Butcher and M.M. fight, causing the former to leave. Their plan is thwarted when Sage, Firecracker, and Splinter intervene; Sage leaves and a fight ensues. Butcher returns and kills Splinter, and Firecracker flees in the aftermath. Guilty over his actions, A-Train gives Hughie and Annie files exonerating the Starlighters accused of murder. Homelander and Sage organize Ryan’s first public mission, a scripted rescue. The mission ends awfully when Homelander appears off-script and shocks Ryan into killing the stuntman disguised as the criminal. Butcher opens up to M.M. in an attempt to rejoin The Boys, to no avail.
Episodes 03
“We’ll Keep the Red Flag Flying Here”
Homelander introduces Sage and Firecracker as new members of The Seven and appoints Sage as the new CEO, replacing Ashley, who is reduced to “mascot” status. Butcher meets with Kessler, and they devise a plan to kidnap Ryan. The former arranges a meeting with Ryan with the intent of drugging him, but they instead spend time bonding together. M.M. recruits A-Train as a spy, who reluctantly accepts. Frenchie and Kimiko go on a mission to destroy a Shining Light Liberation Army cell. During the mission, a drugged Frenchie hallucinates about his past, while an old acquaintance confronts Kimiko. Annie confronts Firecracker, who reveals that she holds a grudge against her because of a rumor she spread that ruined her career. Hughie and M.M. infiltrate a meeting between Homelander, Neuman, and Sage to assassinate Robert Singer, which goes awry when Homelander detects and attempts to kill Hughie; A-Train rescues him. Hughie’s mother, Daphne, reveals that depression and a failed suicide attempt led to her departure. Ryan returns home only to be confronted by Homelander for visiting Butcher, which results in Homelander having a mental breakdown.
Episodes 04
“Wisdom of the Ages”
Homelander returns to the Vought lab where he was raised and experimented upon, tormenting most of the employees before its director, Barbara, intervenes. Daphne’s plan to take Hugh Sr. off life support angers Hughie. Annie meets with Singer to strike a deal to take down Vought. Hughie and Kimiko secure Compound V from A-Train for Hughie’s father but are ambushed by the Shining Light. M.M. and Butcher fail to blackmail Firecracker, who publicly discredits Annie by revealing her decision to have an abortion months prior, leading to a brutal fight that damages Annie’s reputation and ends her alliance with Singer. Ezekiel attacks Frenchie while investigating Firecracker, but Butcher intervenes only to be choked unconscious; he awakes to find Ezekiel dead, torn to pieces. Butcher tells Hughie that he used V to cure his illness but admits that it failed. Frenchie confesses to Colin about killing his family and is brutally beaten by him before threatening his life should he see Frenchie again. Hughie witnesses his father waking up from his coma after receiving Compound V. Bloodied, Homelander leaves Barbara locked in a room with the corpses of her colleagues.
Episodes 05
“Beware the Jabberwock, My Son”
After Hugh Sr. wakes from his coma, Daphne reveals she administered the V. Butcher informs The Boys about a virus that kills Supes, acquired by Neuman.[a] He and M.M. visit Stan Edgar in prison, seeking help to obtain the virus in exchange for amnesty. The Boys and Edgar discover V and the virus being tested on animals at a farmhouse, where Neuman arrives as well. After being attacked by the mutated farm animals, they locate Dr. Sameer Shah who has the last remaining sample of the virus, but are forced to use it to kill a herd of mutated sheep. Afterward, Sameer goes missing and is presumed dead. M.M. returns Edgar to prison, but Neuman frees him. Empowered and mentally confused, Hugh Sr. kills patients at the hospital but soon returns to his sense; Hughie ends his life peacefully. Homelander declares The Seven will now be “wrathful gods” for the “greater good”. In the presence of Tek Knight, Cate Dunlap, and Sam Riordan, VNN anchor Cameron Coleman is framed as the leak by Ashley and killed by The Seven. Wracked with guilt, Frenchie surrenders to the police. Butcher reveals to Kessler that Sameer is alive and he has kidnapped him to replicate the virus.
Episodes 06
“Dirty Business”
The Boys learn that Tek Knight is hosting a party at his mansion with Neuman and The Seven in attendance; they infiltrate the party by disguising Hughie as the Supe Webweaver. When Tek Knight discovers Hughie’s identity, they enter the mansion to rescue him. M.M. shoots Sage in the head right before he has a panic attack; A-Train saves M.M., rushing him to the hospital, and Sage survives. Annie and Kimiko save Hughie and restrain Tek Knight. The three antagonize Tek Knight until he reveals that Homelander and Sage plan to use his prisons as internment camps before he is killed by his butler Elijah. Homelander and Neuman convince the senators to rally against Singer. Firecracker tells Homelander about her encounter with Annie, realizing that the leak is still alive. Meanwhile, Butcher forces Sameer to replicate and make the virus strong enough to kill Homelander. When Sameer reveals that enhancing the virus could potentially eradicate every Supe on Earth, Butcher is pressured by Kessler to continue but discovers he is a hallucination, as the real Joe Kessler died years ago.
Episodes 07
“The Insider”
Butcher bails Frenchie out of jail to assist Sameer with the virus. M.M. gives up leadership of The Boys, passes the baton back to Butcher again, and considers leaving with Monique and Janine; A-Train convinces him not to leave. The Boys discover a plan to assassinate Singer that will be carried out by an unidentified Supe shapeshifter. Homelander kills Webweaver, believing he is the leak. Hughie goes to Neuman’s house to convince her to stop everything, to no avail. Homelander sends The Deep and Black Noir II to kill The Boys, starting a fight with Butcher and Annie, who are saved by A-Train and M.M. Infuriated, Homelander fires Sage from The Seven for hiding A-Train, who has fled the country with his family, as the leak. Tired of being used by Vought and Homelander’s manipulation, Ryan gets fed up, interrupts a live show to give a speech, and leaves. Frenchie and Kimiko reconcile by telling each other what they blame themselves for before Sameer injects Kimiko with the dose of the virus he has prepared and escapes; Frenchie saws off her leg so the virus doesn’t spread. Butcher passes out in a bar and Annie wakes up to find herself shackled in a room somewhere, realizing that she has been impersonated and replaced by the shapeshifter.
Episodes 08
“Season Four Finale”
“Assassination Run”
While Butcher recovers, Mallory and Ryan visit him, where the latter is told of Homelander’s crimes and that he must kill him. However, Ryan refuses, accidentally kills Mallory and leaves, causing Butcher to embrace his dark side of Kessler. Homelander tasks the remaining Seven with eliminating everyone at Vought who has incriminating evidence against them; a targeted Ashley injects herself with V. While Frenchie develops the virus, The Boys monitor Singer in a bunker where they discover Annie is the shapeshifter and a fight ensues; the real Annie arrives and kills the shapeshifter. When Homelander reveals that Neuman is a Supe on air live, she calls on Hughie to protect her and Zoe in exchange for help. When The Boys and Neuman meet, Butcher arrives, kills Neuman with his new superpowers, and steals the virus. Sage reveals to Homelander that his plan has been a success when Singer is arrested for conspiring with The Boys to kill Neuman. Speaker of the House Steven Calhoun becomes the new President of the United States, swears allegiance to Homelander and declares martial law, deputizing Homelander and his army of superhumans. The rest of The Boys are ambushed and captured by Vought troops, led by multiple Supes, but Annie manages to escape; Butcher drives off with the virus. In the mid-credits scene, Calhoun shows Homelander where Soldier Boy is being held captive.