Deep space, an unknown time - on course for Gallifrey, the TARDIS passes through a strange disruption. When they materialise, the scanner shows the Time Lord homeworld... but the travellers have passed into the negative pocket universe of E-Space and are in fact on the planet Alzarius, where evolution works very differently...
Quest roles:
Matthew Waterhouse(Adric), Alan Rowe(Garif), June Page(Keara), James Bree(Nefred), Andrew Forbes(Omril), George Baker(Login), Leonard Maguire(Draith)