Blue Watch is in for a nice surprise, when the new Sub Officer turns out to be a woman - Carole Webb. Billy takes an immediate dislike to her and they bicker. Her crew gets called to a health club where women got trapped in their sauna. Carole sends Billy through the ventilation to open the door from inside and the women coo over him. Recall gets elected spokesman for the firefighters of Blackwall and Laura complains, that she continually feels second-best, threatening divorce. We meet Carole's husband Gerry, a disabled ex-firefighter, who drinks too much and is upset about her career in the brigade. Sicknote rehearses Maggie and Derek in "Macbeth" and Jean encourages Maggie to get her divorce and grasp the chance with Derek. Cyril and a greaseball named Elkins propose a business deal to George to open a health club. Pearce questions Carole's experience on active duty and considers a transfer to be Sub Officer himself in the country. A bunch of joyriders set cars on fire and throw a molotov cocktail into a derelict building. When Blue Watch arrives at the scene, they interrupt their work and cause havoc. Jack and Recall are inside the building, when the hose goes dry after one yob disconnected it from the pump. Billy gets provoked into a fight, but Carole saves him.

• Jack Rosenthal

• Thomas Brodie-Sangster
• Jerome Flynn
• Jonny Coyne