Season Four Episode One 'Riverdale"
photo: The CW

Last we heard, Riverdale's Core Four wanted a drama-free senior year. But this crime-filled town will never let them get off so easy, and the epilogue in season three made it clear that they were in for trouble. 

In the season four trailer, Jughead's whereabouts and safety are completely up in the air, but it seems he's trapped and buried alive in a coffin — yikes! The Riverdale actors shared a few teasers for the upcoming season during San Diego Comic-Con, but even they had mostly been kept in the dark. 

From the looks of the first teaser trailer, season four is one of the darkest yet. Fans are anxiously awaiting the premiere on October 9. 

Riverdale showrunner Roberto Aguirre-Sacasa shared the trailer to his Twitter account. 

There are still so many loose ends to tie up from season three, like where is Alice Cooper, what happened to all of the cult members including their leader Edgar Evernever, and, of course, what does that epilogue mean for Jughead. The season four trailer doesn't give very many answers and raises many more questions. Ultimately it looks like Jughead is missing, trapped in a place where no one is able to find him. 

Last season's epilogue had fans panicking that Jughead had been killed off the show. 

During Comic-Con, the cast revealed that Jughead spends most of his time in season four commuting from Riverdale to his new prep school, so Cole Sprouse definitely makes an appearance during the season. Now it looks like he hasn't been killed off, but is actually missing and trapped underground. The real question everyone is asking now is why did Betty, Veronica, and Archie have to burn Jughead's beanie in the fire? 

The first photos have been released from episode one, an episode dedicated to the late Luke Perry. 

Luke Perry died from a massive stroke earlier this year, while Riverdale was still in the middle of filming season three. Heartbroken, the cast, crew, and writers decided to take their time with Perry's character Fred Andrews' story. Now the first episode will address what happened to Archie's dad, and honor Perry's legacy. 

Plus, the first image of Luke Perry's 90210 costar Shannen Doherty surfaced in the episode. 

According to Aguirre-Sacasa, Perry always wanted Doherty to be involved with the show in some way. Now, to honor his wish, Doherty will make an appearance as a mystery character in the first episode of season four. Aguirre-Sacasa has continued to reiterate how important the episode is; he wrote in his tweet, "First episode is so important and special. Proud of the entire cast and crew."

The show's creator also teased a dark, horror-filled storyline for Cheryl (Madelaine Petsch).

Creating a mock poster inspired by the horror movie Hereditary, Aguirre-Sacasa teased the dark plot to come for Cheryl. At the end of season three, Cheryl Blossom was seen talking to her dead brother's body in the basement at the family home. Petsch teased there was more to come with that hidden secret and trouble between Cheryl and her girlfriend Toni because of it. 

The cast also shared, though, that season four isn't all dark, and there were some fun moments to be seen, including a few senior year parties. From the trailer, things definitely look like they get romantic for the two main couples of the series: Betty and Jughead, and Veronica and Archie.