Professor Noah rescues all the animals from a dying planet, and during their journey of 40 days and 40 nights they plan to travel through a time-zone to take them hundreds of years into the future. At one point, the elephant must take a spacewalk to fix the time-zone guideance fin, which suggests that the time-zone is some sort of a wormhole or other time portal in space rather than mere reletavistic time dilation—and indeed there is actual time travel!