Episode 2
S3, E2: Trapped amongst the victims of the highly contagious Lazar's disease, the Doctor and his companions must find a way back to the TARDIS. As Nyssa falls ill, who are the mysterious armoured figures closing in?

S3, E2: Trapped amongst the victims of the highly contagious Lazar's disease, the Doctor and his companions must find a way back to the TARDIS. As Nyssa falls ill, who are the mysterious armoured figures closing in?