Justice League (2001)
S04E25 The Death Clock
Episode Overview
Title: The Death Clock Plot: Captain Crane passionately declares, “The Flying Sub is my pride!” as he faces another crisis aboard Seaview with the reactor spiraling out of control. Without pausing to put on radiation protection, he rushes into the Reactor Room to deactivate it, resulting in an explosion that knocks him unconscious. Despite treatment in Sickbay with a high-tech anti-radiation device, Crane remains in a deep coma, leaving Doc baffled. Meanwhile, Corpsman Mallory has repurposed this life-saving technology into a time-traveling machine. As he experiments on Crane, a twisted version of the Captain from the future emerges, believing Admiral Nelson to be the source of his failures, leading to a shocking confrontation.
