Doctor Who and the Silurians (5)

Name: Doctor Who and the Silurians (5)
Director: Timothy Combe
Released: 1970-02-28
Duration: 25 min
Rating: 7.6
Cast: Norman Jones, Thomasine Heiner, Paul Darrow, Geoffrey Palmer, Dave Carter

S7 E9 February 28, 1970 0h 25m ★ 7.6

Source:

Overview

Worried about the Old Silurian's growing friendship with the Doctor, the Young Silurian has the scientist infect Baker with a virus and then release him.