Read carefully, and study the diagram.
http://en.wikipedia.org/wiki/Plot_(narrative)
1: what is a climax?
2: what does 'climax of the story's plot' mean?
3: what does story plot mean?
3 answers
http://www.learner.org/interactives/story/climax.html
http://en.wikipedia.org/wiki/Plot_(narrative)
http://en.wikipedia.org/wiki/Plot_(narrative)
personally, I like mini-plots (secondary plots) with several climaxes and a couple of anti-climaxes. I get bored easily. Have you ever read Shakespeare's plays? They don't bore me.