Season
Season 6 Episode
- Season 4 Ground Detective Simon Wallis: Case 2 Soy Sauce
- Season 4 Fishing Crazy: Divine Duel at Sea
- Season 4 Close to ART: WATARI-UM - The Watari Museum of Contemporary Art
- Season 4 Through the Kitchen Window: Iga - Creating New Out of Old
- Season 4 A Treasured Creation: Today's Treasure - Ai, the Natural Indigo of Japan
- Season 4 A Treasured Creation: Today's Treasure - Keeping Barrel-brewed Soy Sauce Alive
- Season 4 Starting Over: Back to School Part 3
- Season 4 Starting Over: The Flight Goes On Part 3
- Season 4 Starting Over: Hotels Old and New Part 3
- Season 4 A Treasured Creation: Today's Treasure - Natural Ice Farmers
- Season 4 Fishing Crazy: Bonding With a Scaly Partner
- Season 4 NINJA TRUTH Episode 15: Ninja Communication
- Season 4 NINJA TRUTH Episode 16: The Fuma Ninja
- Season 4 Through the Kitchen Window: For the Love of Akigawa's Sweetfish
- Season 4 Ground Detective Simon Wallis: File #3 "The Case of the Udon Noodles"
- Season 4 A Treasured Creation: The Bond with Urushi, Japanese Lacquer
- Season 4 Fishing Crazy: Anglers in Wonderland
15 Minutes - Season 4 Episode 1 Ground Detective Simon Wallis: Case 2 Soy Sauce
6.50 15 minutes A city known for its soy sauce production, Choshi lies 100km east of Tokyo, in Chiba Prefecture. Soy sauce production began during Japan's Edo era, although it was widely used on sushi and tempura before then. But why Choshi? For Ground Detective Simon Wallis, the hints this time are "hard coastal rock" and "flatlands," which are said to be particularly suited to soy sauce production. But how could geology make such a difference? The Ground Detective is on the case!
