|Episode 1 (series 4)|
|Airdate||September 29, 1991|
|Previous episode||Episode 8 (series 3)|
|Next episode||Episode 2 (series 4)|
A light aircraft crashes into a warehouse in central London. John Hallam, acting Station Officer in the wake of Sidney Tate's retirement, is being interviewed for promotion to the Station Officer rank. His wife Sandra feels sufficiently confident to order a new kitchen on the basis of his increased salary. Tony has left the Brigade to run a boutique with Jenny. Clare and her two sons move in with Bayleaf and Malcolm has found a new lodger, a law student named Helen.
Sicknote decides to stand for election as a local councillor for the Green Party. While doing DIY, a man gets trapped under the floorboards of his house. Blue Watch free him by soaking him with cold water from the pump to reduce his swelling. Kate's ex-boyfriend Martin shows up. Though she rebuffs him, to her annoyance he persuades her flatmate to let him stay with them. A fast food van is on fire and the fast food van worked is held back by a policeman but his wife slaps him for the fire to the van. Colin sleepily misreads an address they have been called to and accidentally sends the pump to the wrong address. Fortunately it is a hoax call, but it convinces Hallam to extend Colin's probationary period. George's girlfriend Kelly tells him she's pregnant and invites him to a party to meet her family but a stunned George finds that everyone is celebrating their engagement.