A stack of boxes outside a door.

The ad opens with a stack of cardboard boxes outside a wooden door. The boxes then animate into a box-person walking on a treadmill. The box-person falls apart, scattering boxes. Two women then appear on the treadmill, one walking and one standing. The scene transitions to a hand holding a smartphone displaying the OfferUp app. The app shows various items for sale, including a treadmill. The final screen shows the OfferUp logo and download buttons for the App Store and Google Play.