A shakeup in all the gals' lives affects sees Frankie's dad alive but in danger, Trudy leave the DPD, Mary going on the record, and Flo's new family threatened.
Guest stars
All episodes — Season 4
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S4 E1Scavenger Hunt
Jan 4, 202140 min
A scavenger hunt our gals are on turns deadly - is it a case of killing off the competition or more personal?
S4 E2Prince in Exile
Jan 11, 202140 min
When a playboy prince is kidnapped, the team has to be discreet as they investigate so to avoid an international incident.
S4 E3The Girls Can't Help It
Jan 18, 202140 min
Frankie and Trudy investigate a trio of flappers as they search for a stolen, priceless bottle of wine.
S4 E4A Most Foiled Assault
Jan 25, 202140 min
Fierce competition and sexism stymie the gal's murder investigation at a female fencing trial.
S4 E5Ghost in the Machine
Feb 1, 202140 min
Nora is convinced she was visited by the ghost of a murdered woman; she makes Frankie and Trudy search their building. This leads to a shocking discovery.
S4 E6The Guilty Party
Feb 8, 202140 min
The team investigate whether a man acquitted of a grisly murder is indeed innocent or guilty.