For millions of years earth was fertile and rich. Then polution and waste began to take their toll.  Civilization fell into ruin.  This is the world of the 25th century.  Only a handful of scientists remain.  Men, who have vowed to rebuild what has been destroyed...This is their achievement...Ark II, a mobile storehouse of scientific knowledge, manned by a highly trained crew of young people.  Their mission:  to bring the hope of a new future to mankind.   Ark II log, entry #1: I, Jonah, Ruth, Samuel and Adam are fully aware of the dangers we face as we venture into unknown, maybe even hostile areas.  But, we're determined to bring the promise of a new civilization to our people and our planet.