The archaeologists find themselves fighting for their lives when an apparent miracle makes them the target of dangerous religious zealots. Gillian doesn't give new recruit Vivian the warmest of welcomes.

The team is caught up in a dangerous political storm when they uncover the bones of 18th century slaves on the banks of a major river crossing. The team uncover what appear to be the remains of slaves being transported from England.

An earth tremor near Bath exposes a secret 'mine field' in the Roman-Celtic underground.

A discovery in war-torn Iraq is the catalyst for the reunion of old friends. The rest of the team get a few clues to Gillian's own past with the appearance of Kahmil Hammadi.

The team travels to western France to get to the bottom of a mystery that originally seems to date back to the First World War, but actually has its roots even further back in history.

The team is called in to help with a dig run by a self-styled Indiana Jones figure, but their apparent discovery of King Arthur's Round Table could be hiding an even greater treasure.