Act as a seasoned screenwriter with expertise in survival thrillers. Craft a gripping story about [CHARACTER NAME], a [PROFESSION] who must survive a brutal shark attack while [SITUATION, e.g., stranded on a sinking boat, diving for treasure, or training for a marathon swim]. The story should emphasize their [PERSONALITY TRAIT, e.g., resilience, ingenuity, or fearlessness] as they navigate the terror of the open ocean, using [UNIQUE TOOL or SKILL] to outwit the predator. Include vivid descriptions of the setting, the shark's behavior, and the character's emotional journey from panic to determination. The climax should deliver a heart-pounding escape or confrontation, leaving room for [THEMATIC RESOLUTION, e.g., redemption, survival guilt, or newfound courage].