Spiral | Tortoise Investigates, säsong 5

Avsnitt

• Introducing: Into the Dirt
• The truth | Into the Dirt Ep 1
• Project Spring | Into the Dirt Ep 2
• Poison into medicine | Into the Dirt Ep 3
• Chicken feed | Into the Dirt Ep 4
• The verge | Into the Dirt Ep 5
• The whole truth | Into the Dirt Ep 6