Release Message:  Chang, Mr Sin and Weng-Chiang go in search of the time cabinet, while the Doctor (Tom Baker) and Jago go in search of Chiang's lair.

Description:  After escaping from the vicious giant rat in the sewers, the Doctor & Leela team up with Litefoot. Chang, Mr Sin and Weng-Chiang go in search of the time cabinet, while the Doctor and Jago go in search of Chiang's lair.