Bound by hate and a mystical amulet that holds the powers of life and death, two immortal wizards meet for the last time in an ancient struggle of good versus evil.

A young man struggles to access sublimated childhood memories. He finds a technique that allows him to travel back into the past, to occupy his childhood body and change history. However, he soon finds that every change he makes has unexpected consequences.

A Victorian Englishman travels to the far future and finds that humanity has divided into two hostile species.

Hoping to alter the events of the past, a 19th-century inventor instead travels 800,000 years into the future, where he finds mankind divided into two warring races.

The prospects for continuing life on Earth in the year 2058 are grim. So the Robinsons are launched into space to colonize Alpha Prime, the only other inhabitable planet in the galaxy. But when a stowaway sabotages the mission, the Robinsons find themselves hurtling through uncharted space.