Episode 1
Sarge, Ding-Dong and Carter try to resist a heavily pregnant Christmas allegory.
Episode 2
Psychoanalysis is a dangerous thing.
Episode 3
Our trio are reunited with their long-lost son.
Episode 4
The arrival of guest star Peter Vaughan starts talk of mutiny.
Episode 5
Carter and Ding-Ding compete over a chance at the fabled Heathrow job.
Episode 6
The Prodigal Swan returns.
Episode 7
The boys get new surveillance equipment and are soon under threat of being replaced.
