Angela meets the holidaymakers in need of some emergency medical attention on the Spanish island of Mallorca. She also heads to the lab to discover the science behind the bugs we pick up on holiday, and how to avoid them. Helen travels to Corfu to help one couple forget their nightmare holiday in the middle of a Thai building site, and to show them how researching your accommodation before you book really does pay off. Meanwhile in Rhodes, Joe lifts the lid on a budget hotel that just isn't cutting the basic health and safety requirements.