Season 4, Episode 8: Season Finale
Pullman's trust in her team is shattered when she discovers they have hidden an important secret about her past from her. The news that her father, a Detective Inspector, killed himself while under investigation for corruption, throws into doubt everything she believed in. Still reeling from the news, Pullman is asked to reinvestigate another family affair - the death of circus ringmaster, The Great Miraculo aka Bert Dignam, at the request of Christy Berlin who has recently discovered that he was her biological father. But will the investigation at Spingles Circus be enough to distract Pullman from feeling utterly betrayed by her colleagues?
A motley crew of retired police officers re-opens troublesome cases that were never laid to rest.