It depends on the foundation that the dog has. The "food" dvd covers the basic of Michael's marker training system, engagement, muscle-memory/pre heeling (basically heeling with a visible lure), and the correct way to sit, down, and stand. The best part of the dvd is when he talks about engagement although it's kind of cool to watch Michael spend something like 45 minutes explaining the correct way for a dog to sit lol.
He also has two dvds out that more geared towards specific exercises in OB: one on heeling and one on retrieve.