In 2004 at Iron Heights, Freddy Meyers is executed for committing murder at Central City High's prom in 1989. The coroner carrying his body crashes his van and is presumably killed by Freddy.

Nora returns.

Behrad locks Zari in a room on the Waverider.

Gideon tells the Legends about Freddy's return and they travel to 2004 where Central City High's Class of 1989 is holding their fifteen year reunion.

Mick reveals that he was a student at Central City High.

Ray and Nate find a cop outside the reunion who was killed.

Tiffany, a girl who survived Freddy's attack in 1989, is murdered at the reunion.

Freddy locks Ray and Nate outside the school with magic and traps everyone else inside.

In the UK in 2020, Constantine and Gary find Charlie squatting at Constantine's home.

Ray and Nate travel to 1989 to stop Freddy from killing.

Freddy uses his telekinetic powers to kill another former classmate in 2004.

Nora becomes Freddy's fairy godmother in 1989.

Zari sees Behrad's totem. 

Freddy kills Mick's former friend, Ali.

Tiffany asks Freddy to prom as a prank that was planned with the other bullies, but changes her mind at prom. The bullies expose her to Freddy when she tries to back out.

Nora comforts Freddy and, with her help, he impresses his classmates with his dance moves.

Zari, using her past life hacker knowledge, breaks out of the room. She gets in Freddy's limo right before him and his friends do. The Prom Night Slasher looks on.

In 2004, Mick confronts the killer and is killed. 

The Slasher is revealed to be Freddy's mom, Kathy.

In 1989, Kathy attacks Zari and the kids in the limo.

Kathy tells Ava in 2004 that Freddy took the fall for her and she had a heart attack and died when he was executed.

Zari takes off Kathy's mask in 1989 and is revealed to Freddy.

Behrad stops her with his totem, erasing her from 2004 where she was about to kill Sara and Ava.

Zari plans on staying with the Legends.

Mick, Ali, and Tiffany are alive.

At the reunion in 2004, Freddy and Tiffany are engaged. 

Mick and Ali hook up.

Constantine tells Charlie that he came back to talk with a witch, Astra's dead mother.