If "Left Hand Free" is the closest Alt-J will get to beer commercial guitar, then this video is the closest they'll get to a bro's and ho's pool party. Of course, there's a twist, with sly hints at incoming danger eventually descending into assault rifle madness.
This is like the 2001 of weird indie videos. And I mean that as a compliment. And as a way to get out of describing what happens and what it all means here...