When Calls the Heart 12×12 Promo & Sneak Peek “Must Be Gold” Season Finale

When Calls the Heart 12×12 “Must Be Gold” Season 12 Episode 12 Promo & Sneak Peek (Season Finale) – As graduation approaches, Elizabeth and Nathan plan for a happy summer together; Lucas and Edie race Rosemary and Bill to find the gold; the town plans a sweet surprise for Minnie.