Wallace and Gromit look at ingenious inventions for the home. From 1940s household robots and strange humanoid butlers to cutting-edge labour-saving devices, the pair explore the social history of domestic life through inventions.There is a visit to the home of iconic inventor Trevor Baylis - the man who revolutionised the radio - and meet George, one of the first walking humanoid robots ever built, as he is brought to life for the first time in 60 years by his creator, Tony Sale.We visit the world's largest collection of the peculiarly English invention, the teasmade, and delve into the mind of a young Malawian inventor who designed windmills to power his family's home.Finally, Jem Stansfield visits some budding young inventors in Oxford who are recreating a fridge first devised by Einstein which never got off the drawing board.

Wallace and Gromit experience the world through the five senses, exploring the fact and fiction behind invisibility cloaks, bomb-detecting bees and the top sensory inventions.In London, scientists are creating prototype invisibility cloaks using metamaterials to bend light around objects, and we discover the science behind new technology allowing the blind to 'see' through taste using hi-tech sunglasses.In Kentucky, USA we visit the small town where a local farmer invented wireless telephones over 100 years ago. Or did he? Finally in Tasmania, we meet our Inventor of the Week who, after being told it was impossible, invented and made his own unique prosthetic arm.

Wallace and Gromit have always taken their safety into their own hands, and in this episode of the science series they consider other inventors with the same philosophy.They tell the tale of 1940s Hollywood starlet Hedy Lamarr, who had a side-line in inventing, and who devised a radio-controlled 'secret-communication' system for steering torpedoes to help allied forces in the war, the technology of which is featured in all modern bluetooth systems.We look at the most futuristic surveillance drones and the history of spy technology, first developed using the humble pigeon in WWI. In the USA, we look at the fascinating history of spacesuits, while in the UK we reveal the life of eccentric British inventor Arthur Pedrick and his helpful cat. Arthur owns hundreds of patents, from explosive underground bomb shelters to cat flaps, and sometimes a mixture of both.Ejector seats from past to present are revealed in the UK, with some nail-biting tales of high-speed ejection from the lucky pilots themselves, and finally Wallace and Gromit take a look at some less successful health and safety nightmares.