Enter the realm of Britannia: a world rich in history, adventure, and intrigue. Lord British, the benevolent ruler of Britannia, has been lost on an expedition to explore the vast reaches of a newly discovered underworld. Panic erupts in Britannia when the sole survivor of the expedition returns with dread tales of their fate.

To restore peace, the trusted but ambitious subject, Blackthorne seizes control of Britannia. His fanatical devotion to order ultimately transforms him into a self-righteous tyrant. Now, Britannia's destiny depends on your ability to discover the fate of Lord British and to unseat the merciless Blackthorn.