Michael Burrows, a forensic detective in the S.F.P.D. becomes fascinated by the number of "Darwin" deaths being reported. Darwin deaths result when the victims commit a bizarrely stupid acts, resulting in their own demise. Determined to prove a common theme in these cases, Burrows joins forces with Siri, a clinical, no-nonsense insurance investigator specializing in the more bizarre claims. Along the way they come across a parade of unforgettable characters: the speed freak who straps a rocket launcher to his Chevy Impala in his quest to set a land speed record; two guys who decide that dynamite is the fastest way to break through a patch of ice to go fishing; teenagers who will do anything to break into a Metallica concert; and an ad executive who is so confident in the strength of his shatterproof window that he throws himself at it, despite being on the 25th floor.