When Estonia joins NATO in 2004 and becomes a top target for the Russian intelligence, an official at the Estonian Ministry of Defence turns into a Russian spy. Here begins a cat-and-mouse game between him and a determined young Estonian counterintelligence officer as they navigate the twists and turns of the action framed by challenges in both their personal lives. Traitor is a thrilling six-part spy drama series inspired by espionage scandals from Estonia’s recent history.