Set to the sounds of an all-encompassing ocean, a camera pans beneath dark saltwater, bobbing above the surface.
On the shore, an empty chair and a book move with a quiet breeze. There's no one else around, sans the two people in the water.
Then, a faint high note sounds in the background, intensifying the video as a young boy, dressed in full clothing, carries a girl in a swimsuit out from the water.
Using his instincts, the boy performs CPR on the girl.
And suddenly, the video cuts ahead to the boy, all grown up...
...To reveal that this scene, in fact, was between father and daughter.
In the powerful ad, a father uses life-saving lessons he learned as a young boy on his daughter in a near-death experience years later.
The ad demonstrates the importance of learning how to react in such situations, and particularly knowing how to perform CPR. The skillset is the kind that can last a lifetime.
"About 92 percent of sudden cardiac arrest victims die before reaching the hospital, but statistics prove that if more people knew CPR, more lives could be saved," according to the American Heart Association. "Immediate CPR can double, or even triple, a victim's chance of survival."
The ad was created by a Cape Town agency called Not Norm for Scouts South Africa (SSA). SSA is the biggest youth organization in South Africa, and the group teaches children and young adults "leadership abilities, teamwork, self-motivation, commitment, perseverance, environmental and cultural awareness and strong values," among other things, according to their website.
Watch the full video below: