2. Tomatoes

Fruit or vegetable? Zach enlists some expert farmers to unearth the secrets behind the best tomatoes — and learns they're more than just "pre-ketchup."

3. Foraging

Zach strays from the garden into the wilderness to learn the art of finding food from two French foragers, culminating in a woodland tea party.

4. Root Vegetables

Zach turns his curiosity about root vegetables into a trip through kid logic, farm fields and the surprisingly wild lives of carrots and potatoes.

5. Corn

Zach gathers kernels of knowledge from a corn expert and rides shotgun with farmer Murray.

6. Compost

From scents to science, Zach and his kid crew dig into composting, as an expert breaks down the dos and don'ts of making healthy soil.