According to the search results, Sam Beckett is a fictional character and the protagonist of the science fiction television series Quantum Leap, played by Scott Bakula. Sam Beckett stepped into the Quantum Leap accelerator and vanished, and he awoke to find himself trapped in the past, facing mirror images that were not his own, and driven by an unknown force to change history for the better. Several episodes of the 2022 revival confirm that Sam is lost in time, though the Project was restarted by Herbert "Magic" Williams. The original series ended with a cliffhanger in the 1993 series finale, "Mirror Image," which dashed out a hasty explanation for all those lingering, leapin loose ends. The episode ends in wordy exposition, with the infamous title card appearing, informing viewers that Beth and Al indeed stayed together, but Sam Beckett never returned home. Therefore, it is unclear what happened to Sam Beckett, and the series ended with a cliffhanger.