Zack doesn't want much out of life: undying fame, public recognition of his incredible brilliance, that sort of thing. When he meets Loretta, he knows he'll have to wait no longer. Zack has accomplished scientific miracles in his garage lab--changing a toy poodle into a young boy, for instance--but when his new girlfriend casually mentions the time machine in her basement, a whole new level of research opens up. Loretta and her secretive family might try to keep him away, but before his dogged persistence they don't stand a chance. Zack's projects have a way (not to say habit) of going awry, and though he's usually resourceful enough to cope, this time around he really has to scramble, as the machine behaves erratically, pets mysteriously disappear, and he nearly meets himself in his travels. By the end, everyone is home, safe, and happy--home for some being a long, long way off (there's more than one kind of machine in that basement). Zack's large and cheerful ego remains intact throughout. A lighthearted adventure that's short on science, long on laughs.