The one where the Doctor, Jamie and Zoe fly to the moon in a rocket, but don't need to...
I'm watching The Seeds of Death just days after the death of Alan Bennion has been reported, so it's timely that I should mention what a fantastic vocal performance he puts in here. Cleverly, director Michael Ferguson continues to hold back on showing Slaar too much, and we're treated to sparing glimpses of his pock-marked, fanged face, adding to the mystery. Bennion's hoarse, whispering voice depicts Slaar as an intelligent but dangerous creature, and he oozes gravitas despite limited screen time.
On the other hand, Ferguson is more than happy to show the Ice Warriors fully, which in some ways works against them, because they're terribly slow and cumbersome. These 20th century Ice Warriors always walked so gingerly, due to the unwieldy nature of the costumes, and the strident ferocity of the 21st century versions excels in that sense. The scene where the Ice Warrior searches for Phipps in the store room - so beautifully framed in a slow zoom out by Ferguson - is slightly undermined by the fact the Warrior struggles to heft his bulky frame through the door. Moonbase door frames aren't made for Martian physiques, I suppose!