S1·E15 Beginning of the End

Trunks and Goku consider returning to Earth so that Pan can be placed out of harms way and Goten can continue the journey as originally planned. But Giru discovers a dragon ball and leads the group to a desert planet where they must ward off menacing monsters and scour the vast sand dunes for the hidden dragon ball. Will they succeed, or will they become nothing but scattered feed for giant centipedes?