The Walshes reach Guatemala and pick up their new mode of transport, which quickly becomes a nightmare for Bradley to drive. They travel into the jungle, where they abseil down a cliff face into a waterfall and meet a quirky shaman who believes in the healing powers of chocolate. They then head off for a bike ride - but what Barney forgets to mention to his dad is that they are riding on a tightrope 25 metres in the air.

The duo's Latin America road trip continues as they arrive in Costa Rica, where Brad's fear of heights is tested as Barney arranges a flight in a tiny, roofless helicopter to take in some of Costa Rica's breathtaking coastal views. Later, the pair meet a quirky animal lover, before heading to the capital city of San Jose, where they join a local Roller Derby team for a match against their biggest rivals.