In the first case, Miami homicide detective Mayree Morin and her team of investigators are on their way to work on a sunny morning when they are called to a brutal murder scene.

A man, shot at least a dozen times assassination-style, straddles a doorway in one of Miami's roughest areas.

No one in the vicinity saw anything, but detectives quickly learn that an ongoing war over drug turf has recently paralyzed the neighbourhood.

With just hours to work with, Morin's team must move fast to land a suspect before the killer slips away.

In the second case, the son of a celebrated neurosurgeon is discovered near dawn, shot to death along the railroad tracks in Miami's desolate Overtown neighbourhood.

The investigation leads straight-talking veteran detective Ervens Ford and his rookie partner Kevin Ruggiero down a shady path of halfway houses, strip clubs, and misguided wealth.

The pressure is on as the detectives meticulously backtrack the victim's last steps...trying to nail down a solid lead before their trail runs cold.