Immediately after Susana's accidental death, the group makes a pact to keep their involvement a secret and never speak of it again. 15 months later, the group is about to graduate and achieve their dreams. Everything is looking good for them until @todostussecretos reactivates and threatens to take away what they love most: their bright and shiny future. Once again, it's up to Sofía to find out who's behind this new threat before it's too late.