HannahFryuncoversthesecretsbehindthemiraculoustechnologiesofthemodernworld,revealingthemindblowingstoriesbehindtheirinvention.　　Episode1:Passport　　Hannahgainsaccesstoatop-secretsitewhereanonymousstaffandthelatesttechworktomaketheBritishpassportoneofthemostsecuredocumentsontheplanet.　　Episode2:VacuumCleaner　　HannahFryrevealstheincredibletalesbehindthedevelopmentofthecontemporaryworld'smarveloustechnologyandunearthstheirmysteries.Hannahtakesalookatthevacuumcleaner,goingbehindthesceneswithDysonanddiscoveringhowthemotorintheirlatestvacuumspinsninetimesfasterthanthatofaFormulaOneracecar.　　Episode3:Smartphone　　Withoversixbillionofthemacrosstheplanet,smartphoneshavechangedthemodernworld.WithrareaccesstoelectronicsgiantSamsung,ProfessorHannahuncoversthetechnologicalgamechangersthathavemadethesmartphoneareality.　　Episode4:Microwave　　HannahFrydiscoversthehiddenWWIIradartechnologythatheatsupbeans,learnstheleg