The video begins with a watermelon placed on the ground, with a firework placed on top of it. The firework is lit, and it explodes, causing the watermelon to catch fire. The fire spreads rapidly, engulfing the watermelon in flames. The fire continues to burn, with the watermelon eventually becoming charred and blackened. The firework's explosion is bright and colorful, contrasting with the dark, smoky aftermath.