Luna, a talented gymnast from "the wrong side of the tracks", is awarded a bursary to a prestigious private school. To integrate with an elite group of drum majorettes, AKA "trompoppies", she joins a hazing ritual that becomes a tragedy.

The Trompoppies are beginning to crack under the pressure of their terrible secret. Who will be the first to break? Jill and Fred's marriage is on the rocks, but with so many eyes on them, they have no choice but to push through: for now.

With a murderer on the loose, no one is safe and everyone's a suspect. Is Luna next? Tomas, the police's primary suspect, begins to crack under the pressure. Jill hires a private investigator to find the still "missing" Zanne.

Luna receives a threatening message. Is she next? The Trompoppies are tasked with coming up with a new routine, which forces them together again. Madelyn makes a shocking discovery about Zanne and confronts the Petersons with her findings.

The Trompoppies' secret is becoming harder to keep. Who is next on the killer's list? Luna starts to fill the void left in Zanne's absence - she's the new Queen Bee. Jill goes on the offensive to protect her family's reputation.