In North London, police race to a children's play area after reports of rapid gunfire. 22-year-old Imani has been shot four times and tragically dies of catastrophic blood loss. Police are faced with an immediate threat to public safety.

Renowned Pittsburgh neuroscientist Autumn Klein collapses and dies mysteriously. Unusual blood samples raise suspicion, uncovering a shocking, calculated murder behind her perfect life.

Police in Kent are alerted to a missing person; Karla Godoy has vanished on holiday in Peru. A shocking confession sparks an international manhunt as detectives seek the truth.

An explosion in a Californian beauty spa kills owner Ildiko Krajnyak and seriously injures three customers. Forensic experts uncover a sinister plot driven by obsession and revenge.

In a Silicon Valley home invasion, millionaire Raveesh Kumra is murdered. No evidence of forced entry leads investigators to suspect an inside job. Forensic evidence leads to four arrests, but a twist threatens the case.

When 17-year-old Connor Lyons is found dead with no obvious injuries and no witnesses, detectives uncover a disturbing truth, using microscopic evidence to trace the killer.

When 82-year-old Mohammed Saleem is fatally stabbed in Birmingham and a series of explosions targets mosques in the West Midlands, counter terrorism officers uncover a hate-fueled campaign.

When a 72-year-old woman is found dead in her bed in Leicestershire, police find DNA evidence linking a suspect. With no confirmed cause of death, the team uses an advanced forensic method to solve the case.

A father and son are found murdered in South Carolina, shot at point-blank range. DNA found at the crime scene leads investigators to uncover a deadly plot driven by greed, solved using genetic genealogy.

Just streets away from the neon lights and fairground rides of Blackpool, police rush to the scene of a fire in an alleyway and make a discovery. The burning body of a teenage girl. She's identified through DNA as missing 16-year-old Sasha Marsden.