On Holy Island, we find out how a Viking attach inadvertently united the Anglo-Saxon kingdoms,
creating a new national identity as they came together to resist a new enemy.
Mark Horton navigates to Marine Esplanade in Ravenscar in search of the "town that never was".
Destined to be a buzzing Victorian seaside parade, Mark uncovers why it is now just an empty field.
Following three unsuccessful attempts to land a boat on Bass Rock, Miranda Krestovnikoff beats Neil Oliver
to the challenge and is rewarded with a front row view of the diving gannets.