20:05DisasterSeries 2Episode 2: Crash in the Dark: The Severn Tunnel Rail CrashBBC Two Duration: 30 minutes Mon 15th Mar 1999, 20:05 on BBC Two WalesOn 7 December, 1991 two trains carrying nearly 300 people collided in the Severn Tunnel. It took two hours for rescue teams to respond.GenresFactualBrandDisasterSeriesDisaster: Series 2 Source: BBC Online