2026 marks the 70th anniversary of this suspenseful science-horror classic from legendary writer Jimmy Sangster as X the Unknown makes its worldwide premiere in 4K. Widely regarded as the missing part of the Quatermass franchise, this is the latest film to be restored by the teams at Hammer and Silver Salt Restoration.

When a soldier dies from apparent radiation poisoning, the Atomic Energy Commission sends scientist Dr. Royston (Oscar-winner Dean Jagger) to investigate. Despite extensive testing no source can be found - until a mysterious radioactive, mud-like entity resurfaces and begins claiming more victims. What do you do when the killer can’t be stopped - or even understood?

The first 500 orders will receive our new limited-edition X the Unknown mission patch!

Still want to know more? Here’s everything you need to know about X the Unknown.

THIS ITEM IS A PRE-ORDER, IF IN STOCK ITEMS ARE ORDERED AT THE SAME TIME AS THIS ITEM, THE WHOLE ORDER WILL BE HELD UNTIL THIS ITEM IS IN STOCK. If you would like to receive other, in stock items earlier, please place a separate order.