Whitaker and Grover's technological plot to weaponize time reversal and its destabilizing effects on reality

Grover reports the Doctor's arrest to Whitaker, confirming the time is right to deploy the temporal manipulation device. Whitaker, eager to prove its full capabilities, subjects a shattered mug to …

Professor Whitaker, cornered in the control room with allies including rebel Sarah and UNIT forces closing in, demands absolute certainty that the reactor’s power levels can trigger the time field. …