Pour yourself a milkshake from Pop’s Chock’lit Shoppe, because it’s time to celebrate.

Riverdale‘s Dec. 14 episode, “Chapter One Hundred: The Jughead Paradox,” marks a major milestone for Archie (KJ Apa), Betty (Lili Reinhart), Veronica (Camila MendesJughead and a snuffer (Cole Sprouse). This is not the end of the world. Rivervale five-episode event. Episode 100 is, as the name suggests in the episode. Riverdale will air later this month—so, the CW is pulling out all the stops.

CelebHomes News exclusive first-look photos show that “Chapter 100” pays tribute to comics which inspired it. Specifically, in one image, Archie is seen rocking a bow tie, a sweater emblazoned with the letter “R” and slicked back hair. He’s surrounded with Betty and Veronica who are both wearing ’50s-inspired outfits.

Big Archie Comics energy, right?

The new images—which include stills from the episode and behind-the-scenes snaps—also confirm the return of former guest stars, including Shannon PurserEthel Muggs Major CurdaDilton Doiley Lochlyn MunroHal Cooper