The brash James T. Kirk tries to live up to his father's legacy with Mr. Spock keeping him in check as a vengeful Romulan from the future creates black holes to destroy the Federation one planet at a time.
When their new next-door neighbors turn out to be a sorority even more debaucherous than the fraternity that lived there before, Mac and Kelly team with their former enemy, Teddy, to bring the girls down.