We find Hay as Captain Viking, fire chief of Bishops Wallop who experiments with various formulas in the fire station cellar, hoping one day to find a substance that will revolutionize fire fighting. Hay again as brilliant support from Moffatt and Marriott. Hay wonders why the station is not getting any calls and it turns out that Harbottle as put a sock in the stations alarm so not to wake Hay when he had a touch of insomnia. Hay removes the offending article and the calls start to come in. The trio get lost when going to put out a large oil factory which is ablaze and they spend all night looking for it, but to no avail. They get notice by way of a newspaper headline that the fire as now been extinguished. 'It seems a pity now that we've come all this way' exclaims Hay. 'Hey, look in the stop-press, maybe there's a little bit still burning.' 'There's another fire! Town hall ablaze!' remarks Albert. 'Does it say which Town hall' quizzes Hay. 'Yes, ours!!  'Hey, we better get back......ring up Bishops Wallop, tell them were on the way and to keep it going till we get back!' 

On arrival back at Bishops Wallop they find the town hall burnt to the ground. The boys are given one last chance and a trip to a London  fire station is suggested to study the latest fire fighting methods. Hay remonstrates with Albert for stealing a fire alarm 'Can't I take you anywhere without you knocking something off?' he then turns his attention to Harbottle 'Hey! have you knocked off anything too?' Harbottle shows him a length of hose that he has acquired. 'I'm not going to be a party to it, they'll think were nothing but a lot of thieves.' 'Well what do you want us to do with it?' asks Albert. 'Get out of it before they miss it' Hay almost makes it to the exit door before dropping his acquisition-the stations fire axe, much to the amusement of Albert and Harbottle. At least the boys saw the firemans pole in action and on their return set about creating one at Bishops Wallop. 

This is a great sequence in which the trio try to put up their new pole. Harbottle sets about  cutting out a circle upstairs to make way for the pole. He typically saws round himself and he is dispatched to the ground floor, flattening Hay in the process. 'How's that? remarks Harbottle. 'Out!' replies Albert, pointing at Hay unconscious on the floor with Harbottle on top of him. 'Oh dear!' exclaims Harbottle 'it was a good job for me that he was there to break my fall!' The comic capers continue, they cause a traffic jam and totally wreck a china shop. At one point the pole is hoisted up into the upstairs bedroom of a man who is in recovering from a leg injury. Hay along with Albert proceed to eat the man's bedside bowl of fruit, helping themselves without invitation. The doctor arrives on the scene to visit his patient, by this time his bedroom is full of people trying to manouvre the pole. He starts his examination.'Say Arr' somebody stands on the patients poorly foot, he shouts 'Oww!' 'No,no,no.not Oww...Arr!' comes the reply of the disinterested doctor who is seen polishing off the last of the man's fruit. The pole finally gets erected and it is left to Hay to test it out. He is all set to give it a go when he spots something near the bottom of the pole. 'Hey, is that a nail'  'no..its a screw'  'Do you mean to tell me you were going to let me slide down onto that?'  'It would'nt of hurt, it's near the bottom.' replies Harbottle. 'Yes! that's just what I mean.!' answers a startled Hay.

Quite by accident Captain Vikings secret formula gets the missing ingredient added to it, which turns out to be beer and thus his new revolutionary fire fighting formula is invented. Another classic scene occurs when their dinner of rabbit pie is badly burnt and Hay watches Harbottle sticking his fingers into the offending article. 'Hey,Hey,Hey,what do you think you are doing?' asks Hay. 'Picking out the good bits' replies a hungry Harbottle. 

The plot is a little bit laboured from here and we see a group of Americans wanting to hire their antiquated fire engine which will provide cover for them as it is a replica of the one used at the Tower of London and they want to steal the Crown Jewels. Our trio manage to outwit the gang and against a foaming background provided by Hay's invention  we see him and the boys riding out on the station horse Percy decked out in the Crown Jewels, regally bowing to all and sundry.