The Structure Of A Thriller

 

The first plot point is understood as when the protagonist first experiences and is affected by the conflict which is the basis of the Thriller. 

Here I'm using Harry Potter, as an example, we don’t find out about this until later in the franchise but here Voldemort tried to kill harry when he was a baby this was when he was first affected and began his journey to fight against evil. 

Once the protagonist becomes engaged with the conflict this will drive the movie until the climax where usually the protagonist finds a way to win the conflict and defeat the antagonist. 

Here is where harry defeated Voldemort for the final time in the last movie of the franchise these two fighting is what drove the story for all those movies.