Denis thinks he and Sir Meows A Lot have too much stuff and suggests they have a garage sale. While Denis struggles to make any sales, Sir Meows A Lot easily sells off destructive technology that throws the neighborhood into chaos.

Sir Meows A Lot chases aliens up a tree, then gets stranded at the top. Denis tries to enlist the neighbours to help get him down but nothing works. Denis refuses to abandon him and in an act of solidarity offers to become tree folk.

Sir Meows A Lot needs a machine part from the store but Denis is too sick to get out of bed, so he puts Denis into a plastic bubble and pushes him to the store, only to forget about him when he gets what he needed.