The House of Seven Gargoyles - S1-E23
Jonny Quest: We have a proverb in my country, Hadji - seeing is believing.
Hadji: We have one in mine, too - I'm from Missouri.
Continuity mistake: Before boarding her helicopter, Jade kisses Race as her head is turned towards her right shoulder. The next shot her head is turned towards her left shoulder.
Trivia: "Calcutta Adventure" is the episode where Hadji and Jonny meet and become friends after Hadji saves Dr. Quest's life from an assassination attempt.