It's 1939 and Europe teeters on the brink of war. Ten strangers are invited to Indian Island, an isolated rock near the Devon coast in southern England. Cut off from the mainland, with their generous hosts Mr and Mrs U.N. Owen mysteriously absent, they are each accused of a terrible crime. As each member of the party starts to die one by one, the survivors realize that one of them is a killer and start to turn on each other.

While on vacation on Northern Australia, Gracie, her husband Adam and her younger sister Lee decide to take the Blackwater Barry tour in the swamp for fishing. Their guide Jim uses a small motor boat and takes the tourist along the river to a remote spot. When they stop, they are attacked by a huge crocodile that capsizes their boat and immediately kills Jim. The three survivors climb a tree and when they realize that help would never come to rescue...

At Claire's insistence, Sam investigates how adulterated medicine is being distributed to sick children.

A WW2 veteran, who befriended Sam in Changi, is accused of murder.

Kang is caught smuggling explosives and Sam works to save him from trial...and possible execution.

When a newborn baby is left on the doorstep of the agency, Sam and Patricia face a dilemma after uncovering the identity of the mother and her family.

The Cheng Detective Agency is hired by the CIA to investigate the murder of an American sailor.

In 1939, as the world teeters on the brink of war, 10 strangers are persuaded to retreat from their troubled lives to Soldier Island, an isolated rock near the Devon coast. When they are cut off from the mainland by a storm, the true reason for their presence soon becomes horribly clear.

The number of guests has shrunk to five after yet another murder, and the remaining few have lost nearly all hope of survival. With further acts of terrible violence all but guaranteed, they decide to revel in their final hours. But will help from the mainland arrive at last?