From his birth in Bethlehem to his death and eventual resurrection, the life of Jesus Christ is given the all-star treatment in this epic retelling. Major aspects of Christ's life are touched upon, including the execution of all the newborn males in Egypt by King Herod; Christ's baptism by John the Baptist; and the betrayal by Judas after the Last Supper that eventually leads to Christ's crucifixion and miraculous return.

The spaceship Altares, with a photon drive capable of accelerating it to the speed of light, leaves an Earth-orbiting space station. The Altares crew, two families of scientific specialists, journeys at light speed with time-dilation to Alpha Centauri, where they launch several satellites to transmit information on the Centauri star system back to Earth and guide future manned vessels in exploring.