Um menino é ensinado a usar sua imaginação por seu avô, que ele lança em uma grande aventura de volta no tempo. Com uma moeda mágica, ele entra no mundo medieval de Sinbad, que deve resgatar uma bela princesa das garras de um cavaleiro do mal.
Janna Riley is the awkward and shy girl nobody ever seems to notice. Not being able to live up to her mother's expectations of popularity, Janna walks through the school hallways alone, though her eyes are always on a certain football player, Bo Callahan. Laughed at and made fun of by the in-crowd, Janna sees her opportunity to become accepted when a fateful motorcycle "accident" lands Bo into her arms and under her doting care. Bo's vulnerable condition enables Janna to kidnap Bo and, in the style of Stephen King's "Misery," the viewer is held captive for every thrilling second.
A time-travel experiment in which a robot probe is sent from the year 2073 to the year 1973 goes terribly wrong thrusting one of the project scientists,into a plague ravaged alternate time-line whose war weary inhabitants are locked in a constant battle with killer robots from the future.
