Eleventh Hour (originally entitled Dark Matter) is a four-part British television series developed by Granada Television for ITV, created by writer Stephen Gallagher.

The show follows the adventures of Professor Ian Hood, (Patrick Stewart), a Special Advisor to the government's Joint Sciences Committee, who troubleshoots threats stemming from or targeting "scientific endeavour." He is joined by Rachel Young, (Ashley Jensen), a Special Branch operative who acts primarily as his bodyguard, as Hood has made powerful enemies through his work. 

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