Ace of Wands

Nightmare Gas - Part 1 (2x7)

: 01, 1971

Mr. Sweet is visited by Doctor Winthrop, who urgently needs help in locating a consignment of his deadly hallucinogenic gas known as ‘H23’, so called because it induces sleep and then horrifying nightmares in its victims, who then die of shock after just twenty-three minutes; the lorry containing the gas canisters was recently hijacked while en route to a dumping ground.