This Lesson 5 video is more condensed than the first post on this on October 9. This video is about Extending two measures into one longer measure by just eliminating the "pinch" at the beginning of the second measure and continue working the inside pair and outside pair of the four thinnest strings. It sounds complicated; it's not.
Look for a follow/up exercise (Exercise 5) to help you accomplish this Lesson 5. In this exercise we'll practice doing this at 60, 80, 100, and 120 beats per minute, as with most of the other Exercises.
If you've just stumbled onto this video and seem a little lost, go to the first Lesson/Exercise and start there. Then advance to Lesson Two, Three, and Four. This series of lessons and exercises is designed to be taught in a logical sequence.