Taylor's hopes for a fresh start post-parole are jeopardised by cellmate Dee's arrival. As Dee takes Taylor under his wing, a vicious attack tests their bond, forcing Taylor to choose between protecting Dee and his own chances at freedom.

Heroin addict Mark Renton stumbles through bad ideas and sobriety attempts with his unreliable friends --Sick Boy, Begbie, Spud and Tommy. He also has an underage girlfriend, Diane, along for the ride. After cleaning up and moving from Edinburgh to London, Mark finds he can't escape the life he left behind as Begbie and Sick Boy come knocking.

When her father's murder reveals a hidden double life, a lawyer seeks revenge by infiltrating a Galician drug cartel and becoming close to its leader.