Renton, deeply immersed in the Edinburgh drug scene, tries to clean up and get out, despite the allure of the drugs and influence of friends.

Trainspotting follows Mark Renton and his group of heroin-addicted friends as they navigate the gritty streets of Edinburgh, Scotland. Struggling with addiction and the harsh realities of their lives, they grapple with friendship, loyalty, and the desire for a way out.

The film offers an unflinching and raw portrayal of their experiences, with moments of dark humor and desperation woven throughout. Mark is torn between the allure of drugs and the hope for a better life. As they encounter various challenges and consequences, the group's dynamics are tested, leading to introspection and a quest for self-discovery.