The son did not go back in time, but did talk to his father, the fire fighter, on the ham radio by the sun spots that caused the skips to open up to his father's time. On the night before the anniversary of the father's death-in the present time line- the son talked to the father and caused the father, the next day, to turn left and not right and ended up in the river and not burned up in the building. This is where the idea of a protective like bubble came from, I think, but the son also had twin memories of having his father die and also grow up with him.<br /> <br />That is where I had difficulty justifying the logic there. I can see having one timeline in your head because that is your reality, and the other is everyone elses. But I don't think you could really possess two timelines in your memory.<br /><br />But he also changed his father's destiny even further, by getting him to stop smoking, and keeping the father from dying from cancer later on. <br />The plot of the show was that he, (the son, a cop), had to help direct his father to correct the errors of time they committed by saving the father's life the first time, which also saved the bad guy,(murderer), from dying that night (in the past) and so continued to cause a murder spree in the son's present time(?). And that same bad guy did kill his mother as well as part of that new murder spree, an additional change to the timeline. The movie dealt with how actions of a changed past can affect the reality of the present time.<br /><br />To go back to that line in "Final Countdown", if you thought to much on this, it COULD drive you mad!!!!<br /><br />There is a fun nonsense movie called "12:01", I think, where the mad scienctist(sp) caused that day to repeat itself continuously. That action was called a time bounce, or some such thing, and the hero was a guy who wanted to talk to a girl but missed the chance and said there will always be tomorrow, and there wasn't. But thru some accidents that happened, he was prote