The Bourne Legacy, fourth movie in the series of Bourne is infact without Matt Damon rather without character named Bourne. However the theme, pace, action and grip of the movie remained the same and I hope Jeremy Renner, who is perfectly cast in the lead, didn't let down the Bourne club fans.
With Jason Bourne very much still in everyone's thoughts, although his whereabouts remain unknown, after he took down a massive CIA operation. the Bourne Legacy intuit about Bourne but its legacy and one finds that, Bourne isn't the only operative out there that the folks in Washington, DC need to worry about.
After a link between top secret operations is uncovered, Eric Byer, the man in charge of the project, orders it shutdown for face saving and of course all the links to be cleaned and erased, including the agents on secret engineered drugs, who now become a huge risk to CIA.
Aaron Cross (one such agent) is forced into seeking out the lone remaining scientist responsible for the drugs in order to keep his strength up as well as his increased mental capacity.