Kate is horrified to discover that spiteful colleague Judy has sent Rob a flash drive containing the incriminating footage. Her only hope is to destroy the USB stick before he sees it - but that proves easier said than done. Meanwhile, the registrars prepare for the raid on Kristina (Gaja Filac) and Amir's (Noof McEwan) wedding - a case that takes on increased urgency with the discovery of another young woman's body.