Other source:
Yamcha, 18, Bulma, Videl, and Chi Chi, among others, go looking for the Dragon Balls. Their search for the seventh one leads them to a nest full of eggs, but before Bulma can grab it, a dinosaur eats the entire nest. Yamcha hits the beast with an energy ball, which causes it to fly into the ocean. Videl goes swimming after it, and with a little help from Master Roshi, they are able to extract the ball. Piccolo and Krillin arrive at the lookout with the unconscious Trunks and Goten. Soon after, Goku regains consiousness and appears at the lookout himself.
