A disillusioned war veteran in 1950s America is offered the chance to time-travel and change history, but must confront the moral implications and ultimately chooses to make a positive impact in the present, only to discover that their decision was the right one and they can still make a difference with the knowledge of the future.
Protagonist: A disillusioned war veteran struggling to find purpose in the 1950s; Deuteragonist: A mysterious figure who offers the protagonist the chance to travel back in time and change the course of history.
The revelation of the deuteragonist's true intentions and the protagonist's internal struggle as he realizes the moral implications of changing the course of history, leading to a dramatic climax and resolution of the narrative.
In the end, the protagonist chooses not to alter history, realizing that the past cannot be changed without dire consequences. He decides to focus on making a positive impact in the present instead, finding purpose and redemption in helping others and contributing to the betterment of society. The deuteragonist, revealed to be a time-traveler from the future, respects the protagonist's decision and disappears, leaving the protagonist with a newfound sense of hope and purpose.
Twist: The deuteragonist reveals that the protagonist's decision not to alter history was actually the right choice, as it would have caused catastrophic consequences in the future. The deuteragonist commends the protagonist for their wisdom and integrity, and offers to mentor them in using their knowledge of the future to make a positive impact in the present. The protagonist accepts, realizing that they can still make a difference without changing the course of history.