The Sontarans invade Gallifrey

Tags: Fourth Doctor, Leela, Sontarans

The Invasion of Time, episode 4
25 February 1978

The Doctor is behaving strangely. He has returned to Gallifrey and demanded the presidency, banished Leela to the wastelands and had K-9 destroy the planet’s defense shields to allow an invasion. But it’s all a trick – the invasion was a ruse to fool the Vardans into a time loop. So, it’s time to celebrate, right?