While showing the video to my wife, we noticed our oldest son made an appearance, coming up the far steps at :17, goes out and around the deck from :18 to :22, where her got stuck and she had to lift him over the railing, then he disappears under the deck from :25 to :32, which was probably several minutes and then heads to the door where my grandpa lets him in at :34
And yes I "Moon-walked" at 3:08