Stacey Dooley travels to Sunny Beach in Bulgaria, which is fast overtaking Magaluf and Kavos as the favourite party destination for young Brits. Stacey uncovers the consequences of a no-rules party scene, where alcohol has the lowest prices in Europe and bar crawls of up to 400 people dominate the strip. She sees what the young Bulgarians working on the resort really think of the British drinking culture and reveals some of the devastating consequences when things go too far. Stacey investigates the easy access British tourists may have to illegal drugs and questions what the authorities are doing about it. In one of the poorest countries in Europe, Stacey visits a part of Sunny Beach many of the tourists don't get to see and spends time with some of the Roma Gypsy community who are blamed for much of the crime on the resort.

Stacey Dooley investigates a stag's last night of freedom in Prague, a no-holds-barred city that caters for a man's every whim. She meets some of the thousands of girls who are paid to entertain Prague's male visitors and reveals how they really feel about their work. She discovers how the city is littered with brothels thinly disguised as massage parlours and gentleman's clubs, and reveals how the tough competition is putting pressure on the girls to go further and further. Stacey joins the police on patrol to see the daily struggles they face to protect the tourists and mop up the trouble they cause. She also uncovers how the large groups of drunken men become easy prey to Prague's criminals, which the police are struggling to stop. Through unprecedented access, Stacey uncovers the darker side of Prague.

Every spring, two million partygoers flock to Cancun for a week or two of pure hedonism - the Mexican resort is second only to Ibiza in the party stakes for young Brits. But as Stacey Dooley discovers, behind this famous spring break hotspot there's a darker side to Cancun that the tourists rarely get to see. Stacey joins the police to see the daily struggle they face to protect the tourists and mop up the trouble they cause. She also spends time with the medics responsible for dealing with the casualties when things go wrong. Investigating what's hiding behind the glossy resorts and brightly lit megaclubs, Stacey finds out why Mexico's military marines and armed police patrol them, and reveals what life is really like for the thousands of Mexican hotel workers who cater to the holidaymakers.