In 1935, when Chinese intelligence agent Mei Ying, who posed as Marshal Kai Ti Chang's secretary, revealed her true allegiance, the Feng Twins were the ones who witnessed it and reported back to their master. When Indiana Jones tried to free the captive Mei Ying from her cell in the Black Dragon fortress, he was confronted by the Feng Twins. Despite their advanced skills, the Feng Twins were defeated by Jones. When he moved to release Mei Ying, however, a trap door opened beneath the archaeologist and he fell into the Temple of Kong Tien.