While it's often reported how few Americans own passports, there are, nevertheless, some 60 million international trips by US citizens each year. Whether they're travelling for business or pleasure, most return home safely. But some don't. Some die in tragic accidents, some commit suicide and a surprising number are tragically murdered.

The key to solving the toughest homicides lies somewhere in the final hours of a victim's life. In each one-hour episode of A Time to Kill, determined investigators must piece together events during this critical window to reconstruct the timeline, unlock the motive, and ultimately close in on the killer.