Part 5/8:

As Lucy navigates this eerie time travel, she meets her physics teacher and finds that the dynamics of the high school have drastically changed; students are nostalgic clichés of the late '90s while technology like flip phones and Walkmans abound. Lucy quickly reunites with Quinn, who is still the same attentive friend, albeit oblivious to her true identity as Summer’s sister, and the two begin to piece together a way to prevent the tragic future.