"What a Night for a Knight" is the first episode of Scooby-Doo, Where Are You!, which means its monster-of-the-day, the Black Knight, is the first villain Scooby and his friends have ever faced.

The Scooby gang go to the grand reopening of the old, haunted Grimsley Mansion, and find themselves solving a mystery behind a legendary Black Knight... and some treasure.

Or is there someone else behind the Black Knight and his dragon--someone who wants to scare everyone away from Joust for Fun and ensure its utter failure? Join Scooby-Doo, Shaggy, Daphne, Fred, and ...