1. Title page: The Case of the Missing Rumbleometer
2. Premise: A mystery to solve
3. The missing rumbleometer
4. Glossary
5. Part 1 - Introduction and background
6. Axial Volcano
7. Juan de Fuca Ridge
8. Mid-ocean ridges
9. Plate tectonics
10. Hydrothermal vents
11. Black smokers (with movie link)
12. Chemosynthesis
13. Tubeworms (with movie link)
14. The ROPOS vehicle
15. What happened to the rumbleometer?
16. Get ready to set sail
17. Credits