Timeline

Cade Gatlin thought he had it figured out.

Three months after stealing a time machine and jumping back to 1996, he's building the future he always wanted. His brother Reese is weeks away from a cure for the leukemia that killed him in the original timeline. His relationship with Mara is stronger than ever, with their wedding just months away. Everything is finally going according to plan.

Then Cade wakes up married to someone else.

The timeline shift is brief-a glimpse of an alternate reality before he snaps back to his own life. But the scratches on his arm from that other world are real. And the shifts keep happening.

In one reality, he failed to act quickly enough to save his brother. In another, he never even got the chance to try. Each shift throws him into a different version of his life - moments where his choices led to vastly different outcomes - before pulling him back to his own timeline. The shifts are random, terrifying, and getting more frequent.

With AIVA, his AI assistant from 2055, Cade discovers he's navigating something no one in the future ever could have predicted. He was never supposed to have the LifeLine device in the first place-he stole it. And now he's experiencing consequences that the technology's creators never imagined.

As Reese's crucial medical procedure approaches and his wedding to Mara draws closer, Cade races to understand what's happening to him-and how to stop it-before one of these shifts becomes permanent. He came back to save one life. Now he's fighting to keep his own from unraveling.

Cade can have it all - his family, his fortune, his future. If the timeline holds.