"The Heart of the Cards", known as "The Terrifying Blue-Eyes White Dragon" in Japan, is the first episode, and premiere, of the Yu-Gi-Oh! anime. It is the first episode of the Duelist Kingdom arc. It first aired in Japan on April 18, 2000 and in the United States on September 29, 2001.
Seto Kaiba overhears Yugi Muto telling his friends that Solomon Muto, Yugi's grandfather, has a rare card, the "Blue-Eyes White Dragon". Obsessed with owning them all, Kaiba challenges Solomon to a Duel and when his holographic arena technology proves too much for the old man, Yugi steps in to Duel to avenge his grandfather's defeat.