Return to Mayberry (1986)

This was a reunion bringing back most of the characters from The Andy Griffith Show. It begins with Andy Taylor returning to Mayberry and planning to run for his old job of Sheriff but when he arrives, he discovers that his old deputy and friend, Barney Fife, is planning to run also. So Andy decides to back down. And at the same time there are some strange things going on, and Barney's stumped, so Andy has to help him out. Also Barney's planning to propose to his old girlfriend Thelma Lou, and Opie, Andy's son is about to become a father.