UNIT sees a retired General Sir Alistair Lethbridge-Stewart acting as  advisor to a new team: Colonel Emily Chaudhry (Siri O'Neal), Lieutenant Will Hoffman (Robert Curbishley) and Colonel Robert Dalton (Nicholas Deal).

The fourth play sees the introduction of a character glimpsed in the Doctor Who - Unbound range, Colonel Brimmicombe-Wood (David Tennant – who would, of course, go on to play the Tenth Doctor).

Discover and enjoy the further adventures of UNIT in their own self-contained mini-series, with more to come soon in the form of Doctor Who - UNIT: Dominion.