Tegan exposes Mawdryn's temporal lie

Tegan directly challenges Mawdryn’s impossible claim to be the Doctor by calling out the glaring contradiction in his persona—if he were truly the Doctor he would have returned to Earth in 1983 instead of lingering in this alien limbo. Mawdryn deflects with a vague assertion that escape from a warp ellipse creates temporal anomalies, an evasion that strains credibility. Nyssa, unwittingly, lends weight to Mawdryn’s deception by echoing his temporal explanation, inadvertently deepening the peril as Tegan now faces not only an impostor but a forged narrative built on fragile logic. The exchange reveals the growing fracture in their trust while also confirming the next phase of Mawdryn’s plan—demanding aid to reintegrate the TARDIS with his ship, a pivot that exposes the escalating threat beneath his deceptive facade.