The excavation of a skull in Knightsbridge, London, reveals a hidden archaeological site, yielding multiple skulls and a ceramic tube-like structure. Initially mistaken for an unexploded bomb, the Ministry of Defence's investigation uncovers insect-like creatures, prompting Professor Quatermass to propose a groundbreaking theory: Martians may have visited Earth five million years ago, with profound consequences.

A 5-million-year-old human skull unearthed at a London construction site spar...