The Mutants (1)

Name: The Mutants (1)
Director: Christopher Barry
Released: 1972-04-08
Duration: 25 min
Rating: 6.2
Cast: Paul Whitsun-Jones, James Mellor, Garrick Hagon, Geoffrey Palmer, Christopher Coll

S9 E15 April 8, 1972 0h 25m ★ 6.2

Source:

Overview

The Doctor and Jo arrive on the planet Solos, on a assignment by the Time Lords, where they learn that the native Solonians are mutating into ant-like mutant creatures...