Screenplay: Christopher H Bidmead

Direction Fiona Cumming

Cast Peter Davison · Janet Fielding · Matthew Waterhouse · Sarah Sutton

Plot While the Doctor tries to recover from an unstable regeneration, the Master sends the TARDIS hurtling back in time to the Big Bang, where it will be torn apart. Adric,...

Direction Ron Jones

Cast Peter Davison · Janet Fielding · Mark Strickson · Peter Gilmore

Plot The TARDIS is dragged down to the surface of the planet Frontios and apparently destroyed during a meteorite bombardment. The Doctor is forced to help the planet's human colonists -...

Direction Paul Joyce · Graeme Harper

Cast Tom Baker · Lalla Ward · Matthew Waterhouse · Clifford Rose

Plot The TARDIS is hijacked in the vortex by a time sensitive Tharil named Biroc, and brought to a strange white void. Biroc wants to free the others of his race...

Direction Peter Grimwade

Cast Tom Baker · Matthew Waterhouse · Janet Fielding · Delore Whiteman

Plot The Doctor takes Adric and a young air hostess named Tegan Jovanka, who has come aboard the TARDIS by accident, to the planet Logopolis, home of a race of mathematicians...