A detective goes to investigate a murder when he accidentally triggers a series of events that cause the apocalypse and the collapse of the United States (the world). A detective goes to investigate a murder when he accidentally triggers a series of events that cause the apocalypse and the collapse of the United States (the world). A detective goes to investigate a murder when he accidentally triggers a series of events that cause the apocalypse and the collapse of the United States (the world). A detective goes to investigate a murder when he accidentally triggers a series of events that cause the apocalypse and the collapse of the United States (the world).