In a future where time travel is tightly controlled, Lia Ardent, a former historian turned investigator, is tasked with preserving the integrity of the timeline. When a seemingly minor disturbance—a flower blooming years too early—catches her attention, she uncovers a deeper conspiracy involving a rogue group known as the Echoes. These rogue travelers subtly alter small moments in the past, believing their changes are harmless. But as Lia investigates further, she discovers the Echoes are working toward a far more dangerous goal: manipulating time itself to reshape reality. As she races to stop them, Lia faces the possibility that her own past may have been altered, forcing her to question the true nature of her world—and her memories.