PLEXUS is an app that contains lectures of LIVE Surgery Masterclasses by the CCC group, in an attempt to cover the postgraduate or specialist training in Surgery. The aim is to develop a deep understanding of the subject of surgery so that the user can increase their success in various specialist examinations and in their practice. Lectures have been categorized by site 1. Upper GI 2. Lower GI 3. HPB 4. Hernia 5. Breast 6. Endocrine 7. Vascular 8. General 9. Allied (Uro, Neuro, Plastic) 10. Miscellaneous It is also been categorized by type 1. Case Presentations 2. Theory 3. Ward Clinics 4. Operative 5. Concepts The app does not contain the entire syllabus yet, but the developers will keep adding video lectures to that effect.