Episode 46a - The Invasion

A happy return to normal space is interrupted by a missile
hitting the TARDIS. Was it an accident or was it deliberate? Does
it have anything to do strange goings on in the English
countryside? Will an old friend be able to shed some light on the
subject? This week Paddy and Tricia discuss a game of cat and
mouse between the TARDIS crew and the head of a shady
corporation, which is spearheading an extraterrestrial Invasion.