The Doctor and his companions' investigation into the meteorite bombings as the true cause of Frontios' suffering, challenging Plantagenet's leadership and the colony's fragile myths of control

Plantagenet suddenly collapses as the Doctor begins to explain the bombardments, shattering the fragile truce. The colonists' insistence on violence erupts when Norna defends the Doctor and Plantagenet orders his …

The Doctor gathers the team in a newly accessible research room to analyze Frontios's bombardment through chemical tests, asserting control over the investigation. Turlough’s inexperience with lab work surfaces, forcing …