The title “We’ll Keep the Red Flag Flying Here” is a lyric from the socialist anthem “The Red Flag.” This directly contrasts with Homelander’s growing fascist imagery (red, white & blue flags) and foreshadows the episode’s theme: regular people trying to keep hope alive under a fascist regime.

Black Noir (the new one) asks Sister Sage what her grand villain plan is. Her answer? “Fix the subway system.” She explains that if Vought can improve New York City’s infrastructure in visible, helpful ways, people will overlook the evil. It’s a biting satire of corporate “social good” campaigns. The internet loved how refreshingly mundane and plausible her evil genius is here.

>!The final scene shows Butcher injecting himself with Temp V again , despite his terminal brain condition, because he sees Kessler (hallucination) convincing him that dying as a monster is better than dying as a failure.!<

Homelander takes Ryan to visit the abandoned Vought lab where Ryan was born (via a breast milk bottle of his own mother’s milk, of course). The interesting part? Homelander genuinely tries to bond — but only by showing Ryan a preserved fetus of a failed Supe. He calls it Ryan’s “brother.” Ryan is visibly horrified. It’s a masterclass in showing Homelander’s complete inability to understand human emotion, while also revealing his loneliness.

Since you're asking for interesting content, here are the most notable, shocking, and easter-egg-heavy details from that specific episode (titled “We’ll Keep the Red Flag Flying Here” ), without giving away every plot beat: