Host Conor Woodman heads to Rio de Janeiro during Carnival, when millions of tourists pack the streets for what organizers call the biggest party on earth, and local scammers treat the crowds as a harvest season. He works undercover with pickpockets, con artists, and street hustlers who explain their methods on camera, from staged distractions to fake police shakedowns aimed at disoriented visitors. Woodman tests the schemes himself, walking into favelas and tourist strips to see how easily a scam actually unfolds in real time, and talks to victims and security officials trying to contain the problem during the city's busiest week. The episode moves between the samba parades and hidden corners where the hustles happen, contrasting the spectacle tourists came for with the parallel economy built around fleecing them. It's a hidden-camera, on-the-ground look at how a festival built on trust and chaos becomes ideal cover for theft, and how ordinary visitors become easy targets the moment they stop paying attention.