On 12 Bar Blues Using Power Chords Lesson 1:
http://www.guitartricks.com/lesson.php?input=11661&c_id=4&ch_id=19&s_id=544
He introduces the topic in Lesson 1 and splits the video (I agree, rather abruptly) to put the actual lesson info into Lesson 2. So it is acting the it is supposed to, he just isn't making it clear what is going on and it seems to end abruptly.
One thing: hit the "NEXT" button to get to lesson 2 of that section, don't just click the lesson title links on the right hand side, that just gives you the first lesson of every series, not every lesson.
Better?