Meet your new history teachers, snooker legend Ronnie O'Sullivan and sports broadcaster Matt Smith, as they cross the pond to explore America’s 300 year history with the game of pool. The real-life mates travel the US to hunt down America’s most notorious pool hustlers while meeting a few characters along the way

莎莉．拉赫特16年來的幸福生活，在父亲遭遇海难的那一刻起，转变成危机四伏的生死冒险。一封神祕的匿名信函，只有短短四句话，却埋藏着无数谜题。父亲的轮船公司合伙人跟他撇清关系后，父亲的死因显然有诡；「七福会」是什么组织？竟能让一个人听后惊骇而死。马区庞克又是什么人？是敌是友？无依无靠的孤女莎莉仅凭这只字片语，能够解开父亲遇害的真相吗？背后是否还有更大的谜题，事关她的身世……

The newly-regenerated Doctor arrives in Victorian London, and Clara Oswald struggles to embrace the man he has become. All the while, they reunite with the Paternoster Gang to investigate a series of combustions that have been occurring all around the city.