Some help from an unlikely source leads Esther to discover the bacterium's natural combatants; Heyerdahl and Zara bump heads over his plan to save Norway.

The Fortress Season 1 Episodes...

• s01e01 - A New Start
• s01e02 - Infected from Outside
• s01e03 - Yersina Pestis
• s01e04 - Secrets
• s01e05 - Black Level
• s01e06 - A New Way
• s01e07 - The Saviour

The Fortress Show Summary

In the year 2037, an enormous wall surrounds Norway, where its people enjoy privileged and sheltered lives in a self-sufficient Nordic paradise. But when a deadly pandemic breaks out, the inhabitants soon realise that the wall intended to protect, is instead holding them prisoner.