When an elite class reunion on a luxury high‑tech train is sabotaged, an anonymous “I killed” confession traps the former students in a 100‑hour pressure cooker of secrets. As the past resurfaces, Lara and Aarón must uncover the truth behind a decade‑old death before the engineered journey destroys them all.

When tragedy strikes in Ayer’s Cliff, Henri must team up with his uncle, Martin Stevens, a disco singer, to prevent the worst from happening.

When Darcy returns home to look after his estranged mother, he discovers that she’s got an unusual housemate:
the teenage ghost of his pre-transition self. Now, Darcy must face the past or risk losing himself completely.

The sudden appearance of strange glowing clouds in the sky causes a mass insomnia.