The Futurians

In the future, two factions wage war: the Inheritors and the scientific Futurians. The Inhertitors cause the sun to turn into a red giant, then escape the end of the world by traveling in time. To stop the Inheritors by manipulating the past, Futurians send genetic time bombs backwards in time, seeding humans with superhuman potential. Callistrax sends his mind to the past, taking over a transient in 1962. 20 years later, Vanderveckan, the man that the Callistrax possessed, reaps the rewards of that genetic seeding when he creates his line of defense against the Inheritors: The Futurians.