. >> started to drizzle, so, i knew we had to find shelter fast. >> how did you feel, caroline? >> a little scared. >> reporter: 8-year-old caroline and her 5-year-old sister, leah, disappeared when they went for a hike instead of waiting for their mother. >> i started to worry and i started to scream. >> reporter: the girls quickly got lost. then they relied on their survival training, even starting a fire. >> we go on camping a lot each summer. and i knew how to start a fire, because i watch a lot of "tropical paradise." >> reporter: dehydrated, they licked water off tree leaves. >> i told her to think happy thoughts. very roll lu >> reporter: volunteers found their boot tracks and then the girls. they are nowun with their paren. tonight, the two volunteers who tracked the girls through this terrain are being praised for helping save their lives. david? >> we're glad they're okay. will, thank you. >>> there is still much more ahead on "world news tonight" this monday. the ceo of the san francisco giants and the altercation with his wife. what he has now just revealed tonight. what'
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