My versions:
REFLEX:
David is living Happy with Millie, lefting everything behind. During a week in vacation, David is attacked and arrested by Charles Moss, director of the CIA. He is put in a cell with Griffin, pissed because David let him to die in Rome.
David and Griffin are send by Moss to get in to a Jumper terrorist cell know as ''Reflex'', controlled by a problematic Jumper called Willard. David and Griffin must impeach Willard and his mates to kill two world leaders and make a Third world war.
The things go wrong when Roland, saved by the Paladins, convince himself that David and Griffin are ACTUALLY part of the ''Reflex'' and attack them, revealing that David's Mother killed Griffin parents.
David and Griffin fight, while the Paladins attack the Reflex soldiers. The CIA gets involved and there's a bi war in the world peace convention. Griffin attacks David Mother, that says she didn't killed his parents. Then, Griffin is arrested by... His older Brother!
Willard is actually Griffin brother, and Killed his parents using a Jumper hability to create ''Jumpercopys''. Griffin gets in a fight and is saved by Millie, that decided to help David.
Big fights and Happy Ending.