UNIT's struggle to contain and counter the Master's temporal manipulation of events

The aftermath of Kronos's unleashing leaves a scorched crater and wrecked surroundings near the TARDIS. A local farmer and a military sergeant stand amidst the damage, piecing together what occurred. …

Ruth, Benton, and Stuart pursue the Master into the Newton Institute laboratory just as he prepares to flee in the TARDIS. The Doctor’s allies find themselves outgunned before the Master …

Ruth