Uncover Bomb On Board logo (Supplied by CBC) Photo: Supplied/CBC
In July 1965 Canadian Pacific Air Lines flight 21 crashed in British Columbia when a bomb went off. Everybody on board died, but more than 50 years later still nobody knows who planted it.
The Canadian Broadcasting Corporation's 'Uncover: Bomb on Board' tries to find out what really happened on Flight CP-21.
We play an extract from the first episode of Season 2 of The Canadian Broadcasting Corporation's 'Uncover: Bomb On Board' called The Crash presented by Ian Hanomansing and Johanna Wagstaffe and produced by Mieke Anderson, Polly Leger and Tiffany Foxcroft.