WARNING: Spoilers ahead for The Boys season 3, episode 7
The Boys just changed the game by revealing a shocking V-24 side-effect, potentially foreshadowing the deaths of both Billy Butcher and Hughie Campbell. Vought's scientists were busy between The Boys seasons 2 & 3. The company's best brains concocted a temporary version of Frederick Vought's Compound-V superpower drug dubbed «V-24.» Unfortunately, Vought's scientists aren't as brainy about basic security measures, and Queen Maeve stole several batches for Butcher to use against Homelander. Karl Urban's mucky Brit has been shooting the stuff ever since, and is joined by surrogate younger brother Hughie, who's fueled by a misplaced sense of romantic inferiority.
When Stan Edgar first introduced V-24 to America's next president, Robert Singer, he admitted Vought's scientists were still ironing out kinks in the formula. As Starlight discovers in The Boys season 3, episode 7 («Here Comes A Candle To Light You To Bed») those kinks were actually massive gaping flaws. After sneaking into a Vought lab, Starlight happens across top-secret V-24 notes lying around (seriously… guys?) and clocks the all-important warning: "Lethal after 3-5 doses."
Related: The Boys Finally Explains Its Best Supernatural Easter Egg
Billy Butcher has already injected four doses of V-24 in The Boys season 3 — fighting Gunpowder, the Russia mission, visiting Crimson Countess, and Herogasm. One more drops him past the point of no return, and with The Boys season 3's climactic final battle approaching, Butcher will very probably get his lucky fifth stamp on that V-24 loyalty card. Exactly what free reward he's entitled to remains to be seen. Amazon has already green-lit The Boys season 4, so Karl
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