A hacker has returned to torment the students with their secrets — and homes in on a night Sofía, Javi and friends would much rather put behind them.

Pablo insists to Javi and Sofía that María is contacting him. Raúl prepares to sell his house. Gerry feels triggered when he witnesses bullying.

More victims of the hacker's violence pile up, and a case of mistaken identity leads to a confrontation between Sofía and Natalia.

Sofía is crushed by her most recent discovery, but continues her sleuthing. Alex warns Clau about Sebastián. Gerry and Bernardo become closer.

Javi gathers everyone together to make a new plan, but when an exasperated Sofía goes off-script, the stakes of the game are raised.

Sofía is deemed irrational when she insist that Raúl is innocent and in danger, so she decides to search for him solo. Gerry seeks a new home.

Gerry reaches out to the group when he suspects something is amiss and everyone must decide what to do to save their friends... and their futures.