Crimewatch returns with new presenters and a new look. Jeremy Vine and Tina Daheley present the latest appeals, hoping viewers will be able to help crack some of the UK's biggest unsolved cases. The programme now takes viewers to the heart of key appeals across the UK, as each episode broadcasts live from a mobile incident studio based near the scene of a key crime highlighted on the show. This edition features a special investigation into the dangers of online dating and the story of how detectives caught 17-year-old Melanie Road's killer after 31 years on the run. The Crimewatch Update programme has been replaced with a new live digital platform linked to the show's website. It keeps audiences up to date with developments on the cases during and immediately after transmission and in the weeks between each episode.