Aria Moreno's present time changes when twilight begins transporting her to the past, where she meets Liam Cruz, a boy she feels inexplicably connected to. Each sunset pulls her into his world, while every sunrise returns her to her own timeline, leaving her torn between two realities. As Aria uncovers the truth, she thinks that Liam must be kept alive, but in her present, he no longer exists. To save him and their future together, she must navigate the fragile threads of time and prevent the tragedy that separates them. With destiny and time working against her, Aria races to prove that love can defy even the boundaries of fate.