This Riverdale review contains spoilers.

Riverdale Season 6 Episode 4

“I know, it read it in the comics”

For its 100th episode, Riverdale showrunner Roberto Aguirre-Sacasa scripted what is easily the show’s most audacious episode. “The Jughead Paradox” had the unenviable task of wrapping up the entire “Rivervale” saga and setting the stage for the rest of the series’ sixth season — which will air when the show returns in the spring. That alone would be enough of a challenge for any writer to tackle, yet Aguirre-Sacasa ups the creative ante by having the installment also become a meta funhouse mirror reflection of itself by reinserting long-gone characters into the narrative and having characters reflect on nearly every ridiculous thing that has ever happened during the series. Oh yeah, there is also the plotline about parallel universes colliding into each other and threatening to wipe out the whole of existence unless Jughead can save the day.