both space ships have past through the wormhole.

the doggie rescue space ship and col taylor's space ship flown by dr.milo the ape, their 2 space craft past through that time space warp worm hole, those 2 space ships have flown back in time to the year 1973, they have to fly 300 million miles in outerspace in deep doggie sleep to be able to reach the planet ,earth of the year, 1973.