tl;dr: very passionate young man develops a special interest in the Thylacine (Tasmanian Tiger), and becomes convinced (not without some evidence) that it might still be alive in Western Papua. So he spends two and a half years preparing to Indiana Jones it into the mountains of Western Papua, and the video ends with him saying "I went". Cut to black. No part 2 was ever posted.
Damn, I really want to know how that story finishes. (I fear that "I went" actually meant "I'm going right now", with the intention that he would post part 2 upon his return. Which appears not to have happened.)