Release Message:  Salateen tells the Doctor and Peri (Nicola Bryant) that they are dying from Spectrox toxemia, but there is an antidote.

Description:  Having been saved from execution by Sharez Jek and his androids, Jek takes a shine to Peri, and wants her with him forever. Salateen tells the Doctor and Peri that they are dying from Spectrox toxemia, but there is an antidote.