It's still one of my favorites and I could hardly walk when it first came out.
And now it's legend, so writing a real review is almost needless. Just about everyone has seen it. It's still regarded as a classic.
So I suppose the best thing to say is that it's like the Karate Kid...only with dancing rather than martial arts.
Single mother and son move into a new town. Son is an outsider that gets in trouble with the local bully. Son starts dating the local bully's girlfriend. Son and bully fight and...resolution.
However, it goes a bit deeper in that it references several cases of high school kids actually taking on town ordinances against dancing.
And Kevin Bacon is the new kid in town, so he's like the Karate Kid, but he also serves in the Pat Morita role as instructor.
And the evil dojo is actually a church and the bad guy is actually a preacher and not a Karate trainer and has a very kind heart and cares a lot for his community. So the main villain isn't really evil he just has a different point of view, and unlike movies today, he is allowed to have a different point of view, to really be wrong in his beliefs, and still be portrayed as a kind and caring person.
So, it's like the Karate Kid only with actual depth and much better soundtrack.