In the Yorkshire Dales, a mysterious signal from space arrives with instructions to build a powerful super-computer. Once completed, the device's motives provokes discourse between scientists John Fleming and Madeleine Dawnay as further instructions are to create a living organism, which Dawnay develops. The entity compels lab assistant Christine to commit suicide, and, upon manifestation, adopts her form, now known as Andromeda.

• BBC
• Tom Hardy
• Charlie Cox
• Kelly Reilly
• Jane Asher
• David Haig
• Colin Stinton
• Robert Gill
• Thushani Weerasekera