Close-ups of people laughing and reacting with surprise and excitement.

The ad opens with close-ups of people laughing and reacting excitedly in a dark room, possibly a cinema. The text "WHAT IS" appears. This transitions to a shot of a roller coaster track ascending against a bright blue sky with clouds. The text "4DX?" appears. More shots of the roller coaster, including people on it screaming and laughing, are shown. The text "IT'S LIKE A ROLLER COASTER" is displayed. This is followed by a close-up of nachos falling, with the text "...but with nachos" appearing. The ad concludes with a shot of people enjoying themselves in a cinema and an end card advertising "Now at Cineworld GLASGOW SILVERBURN book now".