There has been rumors for years that additional footage was shot before the series was cancelled. Most telling were scripted pages of Al and his wife Beth. This would be after Sam changed history so that Beth never remarried before Al returned from Vietman. Al explains to Beth that he no longer can track Sam and that he plans to Leap to go searching for Him. She excepts this and believes he will succeed. Saying if Al could return from Vietman to her, he will return home from leaping. Curiously series creator and episode writer Don Belisario has always denied this even existed. At a 2009 convention I attended he seemed annoyed about any questions on the subject. Well recently a QL fan bought a box of photo negatives on EBay from production of the series. She was very surprised to discover negatives of Dean Stockwell and Susan Diol shooting that scene. Here is a YouTube video of her explaining this discovery And her Tumbler page with the pictures https://qlnegatives.tumblr.com/tagged/deleted+ending I would LOVE to see the actual scene if it still exists. I can only speculate that the cancellation is still sore subject with Don.