The escalating rivalry between the Doctor and the Master, culminating in a temporal duel with cosmic consequences

The Master brings Krasis into the TARDIS to initiate the final phase of his scheme. Using the crystal module from the Newton Institute lab, he prepares to travel to Atlantis …

Trapped inside the Master’s corrupted TARDIS, the Third Doctor and his nemesis engage in a battle of wits through the scanner scanlink. The Master reveals his time lock on the …

Trapped within the claustrophobic confines of the Master’s TARDIS, the Doctor makes a last-ditch effort to reason with his oldest foe, depicting the unleashing of Kronos as an act that …