Each episode examined topics related to science, technology, and everyday items or processes.

This episode also examines how a crewmember should be disciplined for a serious crime when home is so very far away.

Each episode usually looks at two different cases and examines the history of the victim and takes time to interview family members.

This episode examines their impact on people and wildlife.

This episode examines the conflict between individual autonomy and collective belonging.

Each episode examines a small number of extraordinary people who somehow relate to the central theme.

This second episode examines the difficulties of human interaction and communication.

The final episode examines man's impact on the Mediterranean during the twentieth century.

The first episode examines our fascination with exaggerated or distorted images of the human body.

Each episode examined a single theme, the "important thing", such as timing, power, control and money.