In a distant future, humanity has abandoned a poisoned and dying Earth and now resides among the stars. The fate of their former home rests in the hands of CORE (Central Organization of Rejuvenating Earth), while time travel is strictly controlled by The Corporation and their team of Time Escorts. These skilled escorts accompany civilians on journeys to the past, ensuring that nothing is altered. But when Time Escort Michal is fired for saving a young girl from death in the past, he becomes determined to prove that changing the course of history for good is the right thing to do. Though his time-traveling watch is confiscated, Michal manages to secure another one and embarks on a series of vigilante missions to help those in need. Meanwhile, fellow Escorts Jacob and Noah are pulled from their own assignments and given a new mission: stop Michal at all costs. They are told that if he succeeds in altering the past, it will have disastrous consequences for their present reality. However, there is more at play than meets the eye, and Michal's watch holds the key to a deeper agenda. Not only does it allow him to travel through time, but it also has the power to transport him to the future. As Michal takes a bold risk by attempting to change the death of Archduke Franz Ferdinand in hopes of preventing World War One, Jacob and Noah race against time to stop him. But unbeknownst to them, a shadowy government plots to rise and reclaim control over Earth as they know it.