Sarah Jane Smith's personal mission to uncover the Zygon conspiracy and protect humanity from alien invasion

Faced with the looming Zygon threat from Loch Ness, the Brigadier prepares to return to London but hesitates when Sarah proposes a critical investigation. Her insistence on searching Forgill Castle—despite …

The Doctor manipulates a fire sensor in the Body Print Chamber to trigger a false alarm, abandoning stealth for a calculated risk. He orders the real Sister Lamont to hide …

The Doctor prepares to depart in the TARDIS to confront the Zygon threat in London and urgently invites Sarah to join him. After hesitation and a reluctant agreement, she steps …