Part 2 focuses on the Doctor's efforts to understand the prehistoric environment where the missing Concorde has landed. The central antagonist of the first half is the mysterious "Kalid," an orientalist sorcerer figure who commands the bubble-like Plasmatons.
The Doctor eventually confronts Kalid in his citadel, discovering that the "sorcerer" is using the passengers of the vanished flight to harness a powerful alien gestalt known as the Xeraphin. [S19E24] Time-Flight 2
The episode concludes with a classic "Master reveal," as Kalid is unmasked to be the Doctor’s arch-nemesis in disguise. Critics frequently point out that the Master had little logical reason to adopt such an elaborate and culturally problematic persona while alone in the Jurassic era. Doctor Who: Time-Flight (Review) - the m0vie blog Part 2 focuses on the Doctor's efforts to