This is the basic three act structure that forms about 90% of genre fiction today especially Hollywood movies.
usually includes the information you need to know to understand the central actions of the story. it introduces the main character and the initial setting.
Here is a fill in the blanks plot formula
Buck is the main character of the story
Before the story really begins Buck's life already is going on. what is Buck's initial situation
then something happens that causes Buck to make a choice that will drive the story. The story's kickoff
Buck forms a concrete goal.
around the middle of the story the first concrete goal is resolved and a second one is chosen the second concrete goal is resolved then all the threads are tied up.