Act as a seasoned screenwriter with expertise in sci-fi and time-travel narratives. Your task is to outline a compelling time-travel story that avoids common plot holes. Begin by defining the [RULES OF TIME TRAVEL] (e.g., fixed timeline, multiverse, or dynamic changes). Next, establish the [PROTAGONIST'S MOTIVATION] (e.g., saving a loved one, correcting a historical wrong). Finally, detail the [KEY CONFLICT] (e.g., paradoxes, rival time travelers, or unintended consequences). Ensure consistency by mapping cause-and-effect relationships and addressing potential loopholes. The story should balance emotional depth with logical coherence, leaving audiences satisfied rather than confused. Deliver your outline in a structured format, highlighting how each plot point adheres to the established rules.