The Boys Season 4 Episode 7: The Insider

In 'The Insider,' A-Train is revealed as the source of the Vought data leak to The Boys, having been flipped by Homelander's enemies while secretly working as a misinformation delivery system for Sister Sage's masterplan. When Homelander learns of A-Train's betrayal, he impulsively fires Sister Sage from The Seven, unable to accept her strategic manipulation of A-Train. Meanwhile, a shape-shifting Supe infiltrates The Boys by posing as Annie January and becomes sexually intimate with Hughie, while the real Annie is abducted and imprisoned in an unknown location.

The shape-shifter absorbs Annie's identity by ripping away skin after physical contact. Elsewhere, Frenchie cuts off Kimiko's leg to extract the Supe-killing virus from Sameer Shah, who had stabbed Kimiko and fled. Butcher collapses at a bar as his Compound V-induced illness reaches terminal stages, with Joe Kessler's hallucination growing stronger. On the Avenue V Christmas Special, Ryan speaks out against Vought's racist propaganda, defying Homelander's script. The episode ends with the real Starlight captured, Hughie duped by the shape-shifter, and Butcher collapsing.

The episode ends with the real Starlight captured and imprisoned, Hughie duped by the shape-shifter, and Butcher collapsing, setting up the penultimate cliffhangers for the Season 4 finale.