New Riverdale Season 2 teaser brings mystery, teen angst The CW has released another Riverdale Season 2 teaser video with all-new footage from the brand-new episodes. Check it out in the gallery below! RELATED: Comic-Con: Riverdale Season 2 Trailer, Plus Season 1 Bloopers As the town of Riverdale breathed a collective sigh of relief that Jason Blossom’s killer had been found out in the first season, another terrible crime occurred, in a space that had been considered one of the town’s safest, most innocent places.