Su.

A silver, oval-shaped device with a shark graphic and the words "DISC" and "TRACKON" is shown on a metal grate. A person's feet in white sneakers step onto a sidewalk, then walk forward. Two girls stand on a sidewalk, looking surprised. A boy smiles with his hands clasped. Three girls stand on a sidewalk, looking surprised. The scene is set on a city street with buildings in the background.