The TAG are on their way to Torquay to execute a drugs warrant, and Gary decides that it's just too boring being stuck in the van – taking the opportunity to serenade his colleagues with a hoedown – dance moves and all. Suitably entertained, they head off to the house, where cannabis is presumed to be held. Dave and Gary are on door-smashing duty, and all move in haste to avoid losing the element of surprise. On this occasion, however, the surprise is on them, as the door is plastic and refuses point blank to give way. It takes ages to get the door open, but they're finally in and detain a suspect who clearly knows why they're there. But then, given that it took them twenty two attempts with the double ram to get through the door (even more than Robb's best efforts!) he can't possibly have missed the fact that they were trying to get in. There's a fairly extensive amount of cannabis in the house, and the girlfriend’s handbag, but things are largely congenial, and everyone sits down to watch a DVD recording of the suspect's appearance on the Jeremy Kyle Show.

We welcome another new dog handler, Colin Harper, who is stepping in to assist local teams with an emergency call. It's reported that a security guard has had the window of his car smashed in by a youth who, with his mates, has fled. A man matching the CCTV footage is crumpled in a nearby bush, totally out of breath, and claiming that he's had a knife pulled on him in order to nick his iPod – which the CCTV can palpably prove to be a lie. The puffed out guy is clearly shown quite literally punching in the window of the guard's car, and the guard is able to identify him. Despite this, the youth still insists that he is being nicked for being a crime victim. But then, he is drunk – which is probably why he is convinced that it is his human right to stand up, and why he also believes that Colin can't search him without giving his shoulder number first. He then has to be forcibly shoved into the car, which sets his mates off, and they have to be escorted away.

Mike and Chris are in Plymouth on Hallowe'en, awaiting the inevitable trouble that ensues from youths pretending to 'trick-or-treat'. It doesn't take them long to find some likely lads who are clearly not old enough to consume the contents of the cans they're carrying – and the one they hastily dropped when they saw the Beemer. All the booze is glugged into the gutter, and they're advised to go home as they're too young for the booze, but too old to go door-to-door for sweeties.

Having just left the kids, they're just a short distance up the road when a car coming the other way dazzles them with its foglights. One hasty about-turn later, they're behind the driver and pull him over. The driver is not the usual type of foglamp user, being rather on the mature side for such fairylighting – but it's the second time this week he's been stopped, and he proceeds to insist that they're not foglights, they're spotlights. Even when Mike talks him through the procedure of which set of lights is which, he is still convinced that they're 'spotlights', and is equally bemused as to why they're on cars if they're not meant to be used – and is advised that there is such a thing as fog. All this, despite being stopped for the exact same reason no more than a few nights previously. A third time, and it'll be a fine for him.

Over to Exeter to join Gareth, responding to a call where weapons appear to be involved. It appears that a man has clambered out onto a flat roof armed with a knife and a hammer, so Gareth, and a local officer, head out into the back of the block of flats to persuade the man off the roof – having handed over his weapons. He comes down reasonably easily, and is quickly cuffed. He is twitchy and disorientated, and claims to have fled onto the roof with his weapons to escape a pair of intruders in the flat he was in. Matters are confused, as he doesn't live in the flat himself and appears to be increasingly paranoid to the point that he's not entirely sure that Gareth isn't just a figment of his imagination. Once it's clear which flat he was in, officers find no-one at all, but quite a bit of drugs paraphernalia, so it seems likely that he hallucinated the intruders while tripping on whatever drugs he'd just taken.

On the other side of the Tamar for the first time this series, the RCU are in Camborne to assist with a drugs operation. Mike and Jim, with Chris in the back with the cameraman, are in one car, while Roger is in another. Their target is a rather nice stone-built cottage, so everyone has to duck to get in through a rather low door. There's a bit of resin, obviously for personal use, though Mike finds an air rifle in a cupboard, while there's a replica wakizashi dagger in the kitchen. The radio controlled car makes Mike look as though he's auditioning for a Godzilla movie, but the egg-tray probably wouldn't be much use as a knuckle duster. There's not a huge quantity of drugs, but there is evidence of regular use, particularly a tin full of deal bags with dregs in.

Drug searches done for the time being, Mike and Chris are parked up by a main road in Totnes doing some ANPRing. Rather than having the computer ding at them, they instead spot a car whose occupants aren't wearing seatbelts, so they decide to get in behind. Unfortunately, the car gets past some changing lights just in time, leaving the dynamic duo stuck at a red. Once moving again, they are left having to guess which way the car went, and end up behind a rather dirt spattered Ferrari, just as Giles is coming the other way. Being a massive car-nut, his eyes can be seen lighting up even from the other side of the road, and Mike can't resist teasing him that the supercar has no insurance and would he like to drive it back to the nick? Joke over, Mike and Chris find that they have, despite everything, managed to get behind the car they were after, and indulge in a spot of light squabbling over who gets to deal with who. Despite all attempts to get her attention, the driver only notices them when Mike activates the siren, and they finally get her safely stopped in a layby to read the riot act. As her passenger is 14, it's the driver's responsibility to make sure she's got a belt on, so that's two tickets she's got to pay for. Driver sent on her way, the Lads finish off their squabble, and get back on patrol.