Directed by Andrew Davis (The Fugitive), Chain Reaction is a 1996 sci-fi thriller that combines environmental themes with conspiracy action. The film stars Keanu Reeves as Eddie Kasalivich, a University of Chicago researcher who, along with physicist Dr. Lily Sinclair (Rachel Weisz), makes a revolutionary discovery in clean energy technology using sonoluminescence. Their breakthrough promises free, sustainable energy, but quickly attracts dangerous attention.

When their laboratory is destroyed and their mentor is murdered, Eddie and Lily find themselves framed for the crimes. Forced to go on the run from both law enforcement and shadowy corporate operatives, they must uncover who is behind the conspiracy while evading capture. Morgan Freeman delivers a compelling performance as Paul Shannon, a mysterious government liaison whose allegiances remain ambiguous throughout the chase.

The film explores timely themes of scientific ethics, corporate greed, and government surveillance that remain relevant today. While the plot occasionally stretches credibility, Davis maintains solid pacing through well-executed action sequences and Chicago location work. Reeves brings his characteristic everyman appeal to the role of an ordinary scientist thrust into extraordinary circumstances, while Weisz provides intelligent determination as his partner in both science and survival.

Chain Reaction offers an engaging blend of scientific speculation and chase thriller elements. For viewers who enjoy 90s conspiracy narratives or Keanu Reeves in his action-hero prime, this film provides solid entertainment with environmental consciousness at its core. The clean energy premise adds thoughtful substance to the standard fugitive formula.