The film picks up as Nick prepares to leave for the University of Leeds while Charlie steps into his final year at Truham. The growing fear of physical separation sparks internal panic in Charlie, who worries he will hold Nick back or relapse into mental health struggles. Meanwhile, Nick secretly agonizes over whether he should go to university closer to home to keep watch over Charlie.
Following a painful, overdue argument where both voice their hidden terrors, Charlie works with his therapist Geoff (Eddie Marsan) to recognize his own strength. He realizes that Nick’s sacrifice would foster resentment and hinder them both.
In the emotional climax, Charlie encourages Nick to embrace his university life fully, affirming that their bond does not depend on physical presence alone. The film concludes on Nick's moving day; rather than a tearful goodbye, they share a joyful, resolute embrace, looking forward to train visits and the future ahead. The final visual montage showcases the friend group stepping confidently into their next life chapters.