Leela follows Chang in order to find Greel's hideout while the Doctor and Litefoot set about finding her.
Escaping Mr Sin's attack, Leela follows him & Chang back to their lair under the Palace theater, the Doctor and Litefoot in hot pursuit. After attacking Weng-Chiang, she finds herself back in the sewer being chased by the vicious giant rat.—Anonymous
At Professor Litefoot's house, the Doctor is fascinated with the Professor's Chinese puzzle box and quickly realizes that it's the cabinet the the Chinese thugs are after. Those thugs break into the house and Leela is taken to the theater and becomes yet another of the growing list of missing girls. She manages to escape into the sewers but comes face to face with the giant rat. The Doctor meanwhile has also taken to the sewers convinced that the solution to the mystery lies somewhere under the theater.—garykmcd