Have you ever wondered what’s inside the machines you use so often in your daily life? How does a grass trimmer slice through the toughest grass without a blade? What makes a garden sprinkler water a lawn but not drown it? And how does a movie camera lens produce the perfect image? Using ultra-realistic CGI animation, this episode ‘explodes open’ everyday machines into their individual parts, to reveal their secret workings. Combined with stunning footage from the factories where these objects are designed, built and tested, this compelling program uncovers the mysteries of machines and how they work.