"THE SIXTH SENSE" AIRS ON "20/20 SATURDAY," AUGUST 3 ON ABC

When nothing adds up and a gut feeling is all you have, forget your five senses� sometimes what you really need is the sixth sense. Barbara Walters anchors "The Sixth Sense" on "20/20 Saturday," airing AUGUST 3 (10:00-11:00 p.m., ET) on the ABC Television Network. (OAD: 10/26/12)

The Performers: Theresa Caputo is your average suburban mom with one major exception: she says she talks to dead people. In the last several years she has parlayed her "sixth sense" into stardom with her hit TLC show, "Long Island Medium." There's rarely a moment when Theresa is not describing messages from spirits she says are looking to connect with their loved ones in the physical world. Even her "20/20" interview was interrupted when the deceased father of a cameramen apparently had a message to share.

The Power of Premonitions: Have you ever had a gut feeling or a hunch that later came true? You may have actually experienced a premonition. Elizabeth Vargas meets people who say they've experienced the two most likely types� when a mother's instinct goes beyond simple intuition, and premonitions warning us before disaster strikes.

Proof of Heaven: Five years ago neurosurgeon Dr. Eben Alexander contracted a brain infection that brought him to the brink of death� So close, in fact, that he believes he went to Heaven. But Heaven apparently wasn't ready for Dr. Alexander -- he survived, and shares his tale and his new book, Proof of Heaven, with Elizabeth Vargas.

Do You Have the Gift?: Laura Day believes she has the power of premonitions and has turned it into a lucrative career as a psychic advisor to employees of major corporations - advising them on everything from hiring decisions to investments and mergers. How and why do some people say they have this ability?

Animal Premonitions: "20/20" takes a look at pet owners who say their animals have predictive abilities. We profile one dog rescued from a high-kill shelter which now leads an astonishing life helping a team of paranormal investigators. Jay Schadler reports.

David Sloan is executive producer of "20/20 Saturday."