2067

The year is 2067, and Earth is plagued by the catastrophic impacts of climate change and nuclear warfare. The environment has drastically deteriorated, leading to a widespread ecological collapse that threatens the survival of humanity.

To survive amidst the devastation, the last city in Australia relies on a toxic synthetic oxygen supply. This reliance has a sinister side effect, leading to a deadly condition known as 'The Sickness' that plagues the populace.

Ethan Whyte, a manual laborer, faces the overwhelming burden of caring for his wife, Xanthe, who is stricken by The Sickness. His love for her drives his decisions, despite the harsh reality looming over them.

Regina Jackson, the Chief Technology Officer of Chronicorp, calls Ethan in with grave news about the impending extinction of humanity due to The Sickness. She opens the door to a potential salvation through a revolutionary project aimed at time travel.

During the demonstration of the 'Chronical,' a time machine developed by Ethan's deceased father, a sudden radio transmission calls for Ethan's involvement in the future. Torn by his past resentment towards his father, Ethan contemplates the implications of this unexpected message.

After much internal conflict, Ethan decides to travel through time. He awakens in a lush rainforest, feeling disoriented and alone, with only a handheld device named Archie and a wrist gadget gifted by his father to guide him.

Ethan discovers a bunker containing the skeleton of another version of himself, a chilling forewarning of his potential fate. As he grapples with despair, he nearly succumbs to poison berries, highlighting the peril of his journey.

As Ethan teeters on the edge of death, Jude arrives just in time, having tracked Ethan back through time using his life signals. Together, they start to unearth clues about their dystopian reality and the purpose of the Chronical.

Ethan and Jude learn that the wrist device Ethan possesses is a DNA analyzer meant for accessing the inner workings of the Chronical. They realize the project aims to restore Earth for future human habitation, but face a critical conflict regarding time travel logistics.

As they attempt to activate the Chronical, a malfunction endangers both their lives and the potential for saving humanity. They embark on a perilous journey to the power core, navigating through the remnants of civilization.

In a heartbreaking turn of events, Ethan discovers Jude's past revelations that lead to a reassessment of their situation. Jude's escalating despair culminates in a conflict where he holds Ethan at gunpoint, forcing him towards the reactor.

With the reactor looming over him, Ethan grapples with life and death decisions, ultimately pleading with Jude to end his suffering. In a twist of fate, he locks Jude away and listens to his father's final moments on tape, gaining a shocking understanding of the mission's true nature.

Ethan learns the truth behind Regina's plans to escape to the future, prioritizing a select few at the expense of humanity. In a daring act of resistance, he sends a crucial message back to the past containing evidence and plans to thwart her.

Ethan's actions culminate in a catastrophic implosion of the Chronical, effectively changing the timeline forever. Regina is held accountable, while life-giving plants rejuvenate Earth, signaling hope for the future.

In the newly defined future, Ethan discovers a transformed city overtaken by nature, thriving but unnervingly empty of human life. The journey has reached a delicate balance between despair and hope, leaving Ethan to ponder the remnants of humanity.