The physical world is being transformed at an accelerating rate. What was real yesterday is different today. A secret government agency headed by Allen LeJames has spent decades learning how an alien time machine functions and has been using it to change the present by manipulating the past. Solitude Springs, a small town in New Mexico is at the center of the time anomalies that are transforming the world.

John Sebastion, an investigative journalist, is one of a small group of people who notice the anomalies. He begins studying the phenomena and discovers a partner in a local artist. Jaylene Cartwright can sense the undercurrents of timeline manipulation putting them in her paintings and sketches. John calls in a college friend, Harold Finch, for his computer expertise and knowledge of artificial intelligence. These three work together to discover the source of the timeline incursions and fix the past.

The Chronological Preservation Association (CPA) has been tracing timeline incursions throughout the world. Argonne Lafayette, a leader in the CPA, also works for LeJames and has mastered the controls of the time machine. He betrays the CPA.

John, Jaylene, and Harold form a special team, the Time Guardians, to unravel the intricate web of time anomalies and discover the source of the incursions. They infiltrate the agency to discover its secrets and connection to the anomalies. Their motto: "Preserve the Past, Protect the Future" guides their passion and commitment to set the world back to the reality they know.

Will the Time Guardians fix the timeline, or will they be thwarted by the agency?