Especially the first part of the first episode they showed ( two half hour episodes ) . Acetylene torpedoes ! Something went wrong at an acetylene place , and sparked a fire , and all those tanks took off like missiles ! I do n't know why they did n't shut down traffic both ways instead of just one .
According to the above context, answer the following question.
Why would the tanks take off like missels ?


Acetylene is a highly flammable gas and when pressurized is quite dangerous .