The three are sent back to the Late Cretaceous Period (erroneously stated to be in 300 million B.C.), where a Tyrannosaurus rex immediately destroys the time machine.
Ketiganya dikirim kembali ke Periode Kapur Akhir (keliru dinyatakan dalam 300 juta SM), di mana Tyrannosaurus rex segera menghancurkan mesin waktu.