Answer: Allusion
Explanation: An allusion is a literary device used to reference another object outside of the work of literature. The object can be a real or fictional person, event, quote, or other work of artistic expression.
Can you be a little more specific
Answer:
where is the story, or which story
The answer would be The turning point in the story. A climax is basically the best point in something. An example i think that you would understand would be in Avengers: Infinity Wars. in the beginning it was showing two brothers being attacked by a man in a gold suit with purple skin. This would be the exposition. The climax would be the big fight.