Chain Reaction (1996)

Synopsis
Just as the university research team is about to prove that their new technique will permit water to be used as a fuel, their laboratory is sabotaged and the lab manager is killed. Eddie Kasalivich (Keanu Reeves) stumbles onto the scene and manages not only to witness the sabotage, but to escape from it. When he tries to talk about it to authorities, he discovers that they think he and the other project survivors committed the crime. In reality, a group of energy companies have conspired with interested parties in the government to completely erase all notion of the existence of a way to use water as fuel. The project sponsor (Morgan Freeman) wants Eddie to turn himself in, but before he can do that, he must find enough evidence to clear himself and his friends. But in order to succeed, Eddie must avoid assassination attempts by the real perpetrators. ~ Clarke Fountain, All Movie Guide