It's been 20 years since Mark Renton left Scotland, and heroin. Renton returns to his hometown Edinburgh with the aim of rebuilding his life and reuniting with his lifelong friends: David "Spud" Murphy, and Simon "Sick Boy" Williamson; At the same time that Francis "Franco" Begbie leaves the prison with thirst of revenge .... Sequel to 'Trainspotting' (1996), based on 'Porno', the next novel by Irvine Welsh.