Doomwatch S01 E08 The Red Sky

Quist takes a holiday, and stays at the Kent home of his friend Bernard Colley and his daughter Dana. He learns of the death of Captain Gort, who inexplicably threw himself off the nearby cliffs after writing the phrase 'the flames of hell' on the walls of his lighthouse home. Colley visits the lighthouse, and he too sees a vision of the sky turned a fiery red. Quist suspects that these strange events are caused by the testing of a prototype jet plane, and that the noise of the engine is being amplified by the structure of the lighthouse, causing sensory damage to anyone caught within its effects. Original Broadcast Date 6th April 1970