The temporal crisis aboard the alien vessel—unintended consequences of regeneration interference, transmat misuse, and temporal paradoxes threatening all time and space

Inside the cramped Transmat Capsule, the newly regenerated Doctor seizes a tense moment to confront the Brigadier with a dire warning about the consequences of temporal duplication. The Doctor pressures …

The Doctor and Turlough stand helpless as the transmitter roars to critical failure, smoke billowing from its cracked casing. The Doctor registers horror as the device erupts in a violent …