Brother Assassin

Brother Assassin is also known as Brother Berserker.

The Berserkers are the ultimate war machines, designed to roam the galaxy and eliminate all signs of life they find. Their next target: the planet Sirgol, the only spot in the universe where timetravel is possible. Their strategy: to go back to the past and kill Vincent Vincento, an early scientific genius whose death will cost mankind a hundred years' worth of science.

Their adversary: Derron Odegard, an elite Time Operative whose orders are to protect Vincento. He faces the toughest assignment in the history of the galaxy, one that may cost him his life – no matter what the outcome.