My "next time" trailer for The Moonbase, which originally followed The Underwater Menace in transmission order.
No footage exists for the cliffhanger ending to The Underwater Menace, so I have represented it here with a clip from The Web of Fear, in which the TARDIS is similarly out of control. Other clips come from Episodes 1 and 2 of The Moonbase.
Because the monsters are not revealed until the end of Episode 1, they are not shown in this trailer.
