Plot Summary:At a White House press conference, Claire officially responded to the Justice Department's investigation into former President Frank Underwood's exaggeration of 2016 election day threats, stating that posthumous prosecution could be pursued if necessary. When asked if this would affect her current position as president, Claire candidly admitted that she would resign if Frank were convicted. A reporter then interjected, mentioning that Janine, a journalist who had worked with Tom Yates, editor of The Herald, had just uploaded an article alleging that Frank had cut Claire out of his will, with Doug Stamper as the source. Caught off guard by this unexpected development, Claire fumbled for a comprehensive answer, hastily concluding the press conference by vaguely referring to Doug's mental state. Janine's article explicitly stated that Frank had a handwritten will before his death, leaving all his property to his former chief of staff, Doug. Details were not yet public, but Doug promised to release the will's contents. This move caught Claire completely by surprise. Janine also continued to release excerpts from Frank's audio diaries online, portraying Claire as the most heartless woman. The White House legal counsel had sought a restraining order, but the diary content had already spread widely online. Even federal prosecutor Jennifer was somewhat uneasy. Claire vehemently swore to Jennifer that Frank had never discussed anything with her. Bill Shepherd seized this opportunity to severely criticize Claire, suggesting she should step down. Annette, though displeased, saw an opportunity. She sent word to Bill through Mark, proposing that Bill could continue targeting Claire, while she would publicly oppose Bill, which was the only way Duncan could be freed. Bill was heartbroken by the family's division. Annette personally visited the Oval Office, confessing that Doug had played some audio diary snippets. She expressed her opposition to the diaries being made public, essentially begging Claire for mercy and seeking a truce. But Claire knew Annette too well to believe her. The unexpected will caught Claire off guard. After careful consideration, she decided to adopt Frank's tactics, using fear to consolidate her power. At a White House war room meeting, Claire announced she had concrete intelligence that the Caliphate was attempting to purchase nuclear devices in Pakistan. Although it was only a potential threat, Claire insisted on making it public. Subsequently, Claire ordered US special forces into the Syrian coastal region under the pretext of searching for nuclear devices, leading to a military clash with Russian forces. Russia publicly condemned the US actions at the UN, while Claire domestically declared that terrorists would never be allowed to bring nuclear bombs near the US. In the war room, Claire and military personnel spoke with Petrov. Claire insisted a nuclear deal was imminent, but Petrov had no such intelligence. Given the transaction location was in a 20-mile radius desert, unreachable by conventional means, Claire made a decision even Petrov wouldn't dare: a nuclear strike. The military high command present exchanged glances, unsure whether to support or oppose. Back in her office, a package from Doug was on her desk, already screened for danger. Claire opened it to find Frank's old paper knife and his audio diaries. After hearing just one sentence, Claire, terrified, ordered the White House to be cleared, leaving only security personnel and the bare minimum necessary staff. As the military aide brought the nuclear briefcase into the White House, Doug arrived in the Oval Office, escorted by security. He presented a list of people who wanted to eliminate Claire. It was then that Doug finally confessed to killing Frank. That night, Frank intended to kill Claire first, then Doug. Doug wanted to stop Frank from destroying everything he had accomplished, his own political legacy. Frank made Claire who she was, Doug grew increasingly agitated, grabbing the paper knife from the desk and holding it to Claire's throat. Seeing blood, he faltered. Frank made Claire, Claire was Frank's political legacy, he couldn't do it. Claire, seizing the moment, wrestled the knife away and plunged it into Doug's body. Without Doug, no one would ever know the past, and all the dark secrets would be buried with him.