EXCLUSIVE: Dugard's Home Video

March 3, 2010— -- Jaycee Dugard, her mother Terry Probyn and her half sister Shayna, are seen and heard for the first time on-camera, since Dugard was abducted 18 years ago near her home in South Lake Tahoe, Calif.

Dugard introduces herself to the world for the first time and her mother breaks her silence to plead for privacy and time to heal.

In an exclusive video obtained by ABC News, Dugard, now 29, is seen reunited with her mother and half sister this past Christmas for the first time in 18 years.

Watch the video on "Good Morning America," "20/20" and "Nightline," Friday, March 5.

Click here for a preview.

The discovery in August that Dugard, kidnapped at age 11, was alive, captivated the nation.

In 1991, Dugard was snatched off the street and allegedly held captive in the backyard of convicted sex offender Phillip Garrido, 58, for nearly two decades.

Dugard was rescued after Garrido took her two daughters to hand out religious material at the University of California-Berkeley, and a campus police officer became suspicious.

Dugard, whom Garrido had renamed Allissa, was then dramatically reunited with her family. She now lives with her mother and her two daughters, allegedly fathered by Garrido, in northern California.

Garrido and his wife, Nancy, have been charged on 28 counts, including rape and kidnapping. They have pleaded not guilty.