Whenever trouble strikes in one of her relationships, single mother Mary Jo Walker and her daughter, Ava, pack up and move to another city, a routine Ava is tiring of. This time, they are helped on their move to San Diego by trucker Jack Ranson. While Ava settles in, getting a leading part in the school play, Jack starts dating Mary Jo but soon reveals himself to be controlling and aggressive. Mary Jo prepares to flee again, angering Ava.
In this action adventure, a former hit woman comes out of retirement to rescue her daughter from kidnappers. The child's abductors demand that the ex-killer retrieve a highly classified document. They give the woman 24 hours to succeed. If she fails, her daughter will die.
George Malley (John Travolta) es un mecánico de carácter afable que está enamorado de una atractiva mujer (Kyra Sedgwick) recién llegada a la ciudad. El día de su cumpleaños, al salir de un bar, George observa una luz en el cielo e inmediatamente sufre un desvanecimiento. Al día siguiente, comprueba que su inteligencia se ha desarrollado de manera anormal y decide utilizarla para hacer el bien. Todo el mundo está intrigado por lo que ha ocurrido, sobre todo el gobierno, que espera utilizar sus conocimientos en otros campos...
