All freight movements over Britain's rail network are monitored and controlled by an advanced computer-based system known as TOPS (Total Operations Processing System). The film follows the progress of a wagon load of equipment from Truro to the Midlands and shows how TOPS makes it possible to accommodate a last minute change of plan.
Featured Crew
| Ken Fairbairn | Director |
| Lionel Cole | Producer |
| Jack West | Director of Photography |
| Bob Debenham | Editor |
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