 She then realizes that Sonny is holding Theresa hostage in the debris and re-enters the wreckage of the train, attempting to save Theresa.A propane gas canister is opened in the scuffle, and Carmel manages to free Theresa long enough for her to escape from the upturned train, before flames react with the gas and the wreckage explodes.Horrified, Theresa re-enters the wreckage again after the explosion to try and save Carmel, but finds her in critical condition and trapped under debris.