Episode 1: "The Human Enigma"
Nadia Sinh, an elite Citadel agent, is on a high-stakes mission aboard a luxury train in the Italian Alps. Tasked with retrieving a valuable item from a Russian national, Nadia soon realizes she’s been set up. The episode introduces Nadia's complex dynamic with fellow agent Mason Kane, hinting at a troubled past between them. The mission takes a dangerous turn as their enemies reveal themselves, setting the stage for a thrilling espionage showdown.

Episode 2: "Spies Appear in the Nighttime"
Following the train explosion, Nadia is left injured and disoriented, while Mason, suffering from amnesia, starts a new life as "Kyle" in the US. Eight years later, their paths cross again as the fallout from the mission comes to light. As they confront their shared past and new threats, the stakes rise as they are drawn back into the world of espionage, with both Citadel and Manticore at the center of global intrigue.

Episode 3: "Infinite Shadows"
Nadia and Mason dive deeper into their forgotten pasts, uncovering secrets from their time at Citadel. While on a mission to recover a missing Citadel agent, tensions rise as they question each other’s loyalty. The episode provides more backstory on their complicated relationship, while Mason starts to regain fragments of his memories, setting the stage for an intense confrontation with Manticore.

Episode 4: "Tell Her Everything"
As the past unravels, Nadia reveals a deeply buried secret that changes everything for Mason, now Kyle. The mission to rescue a Citadel agent leads to a showdown that forces them to confront their identities and motivations. The emotional tension between Nadia and Kyle reaches new heights, culminating in the revelation of a shocking betrayal that questions the very nature of their mission.

Episode 5: "Time Renders Us Enemies"
Mason and Nadia's complex history comes to the forefront as they face dangerous adversaries in their mission to stop Manticore’s latest plot. Nadia’s long-kept secret about her personal life throws Mason into an emotional spiral, adding layers of complexity to their already strained relationship. With time running out, they must rely on each other to stop a global catastrophe, but trust is in short supply.

Episode 6: "Secrets in Night Need Early Rains"
In the season finale, Nadia and Mason's mission comes to a thrilling conclusion. As they race against time to stop Manticore’s nuclear plan, Mason’s full memory is restored, revealing a devastating truth that changes everything. With personal and professional stakes colliding, the episode ends on a cliffhanger that leaves both characters grappling with their fractured identities and uncertain futures.