Martin Campbell adapts his own miniseries into a feature film. I never watched the original, but it doesn't look like there was any reason to revisit this story. Edge of Darkness is set up like an extremely simple revenge flick, hinging everything on the performance of Mel Gibson. Not a smart bet.
Detective Craven doesn't have the best relationship with his daughter, but when she's brutally murdered right in front of him his world crumbles. He starts digging into her past and hits a cover-up that links the company she worked for to a government operation. That's when Craven starts fearing for his own life.
The action is rather tepid, there's way too much (uninteresting) dialogue and the cast does a mediocre job. It's almost as if Gibson tries to compensate, with a performance that is way over the top. The cinematography and score are also of little consequence. The finale almost redeemed the film, but that final scene was the final blow.