Here's Everything You Need To Remember Before The Final Season Of "Stranger Things"

After learning of Chrissy's death, Nancy drags Fred, who works with her on the school's newspaper, to investigate. While there, Nancy talks to Eddie's uncle and learns about Victor Creel, who has been locked up for years after being arrested for the murder of his family. And while this is happening, Fred is taken by Vecna and becomes his second victim. Eventually, Steve, Dustin, and Lucas are charged with watching Max, Nancy visits Victor with Robin, and learn the true story about his family's deaths.

Soon after Max is almost taken by Vecna, Nancy discovers that the Creel house seems to be an important location, and while visiting it, she learns that Vecna is in the Creel house in the Upside Down. After going to save Steve in the Upside Down, Nancy discovers that the Upside Down is stuck in the past, specifically the day Will Byers originally went missing in Season 1. While trying to escape, Vecna finds Nancy and tries to kill her by using her guilt surrounding Barb's death.

While in Vecna's world, Nancy learns the truth about what really happened at the Creel house. Vecna shows Nancy a vision of Hawkins being destroyed and four gates opening across town, telling her that she needs to reveal everything he has shown her to Eleven.

During the final fight with Vecna, Nancy enters the Creel house in the Upside Down with Steve and Robin to attack Vecna's body. She notably shoots an already burning Vecna, so he falls out of the Creel house, injured.