bound.

A circular portal with a glowing blue and white ring appears in a dark space, followed by a fiery explosion revealing the word "SUPERNATURAL" in a dark, smoky environment. A figure in a dark suit runs through a glass door, shattering it, then a close-up of a human eye with a blue, glowing iris and a bright light reflection. A woman with blonde hair reaches forward with her hand, which is glowing white, and a blurry, black-and-white image of a person in water. The number "1978" is visible in the bottom right corner of each frame.