S1 E1
The Doctor realises signals coming from a probe are of extra-terrestrial origin.
All episodes for series 1 of Doctor Who: The Ambassadors of Death
S1 E2
The Doctor and Liz try to decode a signal.
S1 E3
The Doctor realises the astronauts have been kidnapped.
S1 E4
The Doctor begins to suspect Taltalian is more involved than he appeared.
S1 E5
The Doctor takes Recovery 7 back into space to search for the missing astronauts.
S1 E6
The Doctor speaks with the alien captain and is kidnapped by Reegan.
S1 E7
The Brigadier must rescue the Doctor and Liz.
