2030: in a gray and hyper-controlled Milan, Diana and Luca are sent on a mission to Lugano to spy on the exchange of a powerful weapon. Not far away, Edo Zani, Manticore Italy's heir, has to respond to an unexpected proposal from the head of Manticore France, Cecile. In the flashbacks, Diana investigates her parents' suspicious passings when she meets Gabriele, a mysterious Citadel agent.

Citadel: Diana Season 1 Episodes...

• s01e01 - Split in Two
• s01e02 - War
• s01e03 - Together
• s01e04 - The Zanis
• s01e05 - Attack
• s01e06 - Jupiter

Citadel: Diana Show Summary

Milan, 2030: Eight years ago, the independent global spy agency Citadel was destroyed by the powerful enemy syndicate, Manticore. Since then, Diana Cavalieri, an undercover Citadel agent, is alone, trapped behind enemy lines as a mole in Manticore. When she finally sees a way out and the chance to disappear forever, the only way to do so is by trusting the most unexpected ally, Edo Zani, the heir of Manticore Italy and son of the head of the Italian organization, Ettore Zani, who's vying for leadership against the other European families.