hit the high spots
hit the high spots {v. phr.}
To consider, mention, or see only the more important parts of something such as a book, war, or school course.
In his lecture, the speaker hit the high spots of his subject.
The first course in general science hits only the high spots of the physical sciences.
The Bakers went to the fair for one day, and only hit the high spots.
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Source: A Dictionary of American Idioms
