After spending seven years away from Riverdale, Archie returns to find the town is now under Hiram Lodge's grip and on the verge of becoming a ghost town. When Toni catches him up on what's been going on, Archie reaches out to the rest of the gang to return home.
Nadine and Harold's dark intentions continue to take shape. Meanwhile, the Committee's spies entrench themselves in New Vegas, where Flagg is building his own society, where officially-sanctioned sin and debauchery disguises a ruthlessly-enforced order. Back in Boulder, Frannie hatches a plan to confirm her suspicions of Harold while Mother Abagail seeks divine council.
The Boulder Free Zone Committee looks to solidify their leadership and bolster the community with a town hall meeting, but Flagg continues to make inroads as he plots to destroy the newly-forming society from within.
An exchange is made between the two trains, but a far greater revelation might be just over the horizon.
Mr. Wilford arrives and threatens Snowpiercer, so Melanie makes a move that can't be undone.
With Graduation Day around the corner, the gang consider their next steps beyond Riverdale High. Archie learns whether he will be able to graduate with his classmates. FP makes a difficult decision about his and Jellybean's future.
Holden and the Roci face off against Marco's forces and Drummer, while Alex and Bobbie attempt a dangerous rescue of Naomi, and the balance of power in the Solar System shifts.
Betty and Jughead's investigation into the auteur takes a twisted turn after receiving a call from Bret. Meanwhile, Archie is forced to make an impossible decision when the person responsible for his father's death needs his help. Elsewhere, Veronica and Hermosa come up with a plan to force Hiram into early retirement, and Cheryl makes a business move.
As Ryan Wilder continues to prove herself as Batwoman, she encounters the challenge of every superhero - living a double life. Meanwhile, Victor Szasz is slashing his way through the city streets, and Commander Kane has The Crows trying to stop the flow of Snakebite through Gotham. Safiyah takes notice of Alice's antics and Sophie finds herself in unexpected circumstances.
Amos, Clarissa, and a gang of thieves work together to leave Earth. Avasarala tries to head off a brutal military strike. Drummer's new family bonds are tested as Naomi's life hangs in the balance.