The Quatermass Experiment — Season 1, Episode 5: An Unidentified Species

Episode synopsis

Quatermass picks up Carroon's trail and believes that the mixture of chemicals he has taken will accelerate his metamorphosis. Meanwhile, the killing starts - and Westminster Abbey a pulsating mass is revealed clinging to the building.

About The Quatermass Experiment

Set in the near future against the background of a British space programme, the story of the first crewed flight into space, supervised by Professor Bernard Quatermass of the British Experimental Rocket Group.

More episodes from Season 1

• E1Contact Has Been Established
• E2Persons Reported Missing
• E3Very Special Knowledge
• E4Believed to be Suffering
• E6State of Emergency