King of the Hill

As you can see, there are a few stories touched on in the brief clip. Bill adds to a pile of burning books while an unknown character serenades the scene. Bobby and Hank seem to be trapped in a walk-in cooler or storage room, possibly at Bobby's restaurant. Boomhauer joyfully embraces a reluctant Hank.

And, perhaps most touchingly, Joseph Gribble joyfully rides on horseback alongside his biological father John Redcorn, apparently getting the bonding moment they've always deserved as father and son.