After Gary's experiences in Afghanistan and the death of best friend Quinny, the former soldier has returned to Weatherfield and tried to rebuild his life.
But since moving in with Izzy, his girfriend has found his behaviour increasingly suffocating and concerning.
Now things look set to come to a head after she is mugged and then finds herself trapped at home with her unbalanced boyfriend, who wants to keep her safe from harm.
As Gary spirals out of control over Izzy, watch this exclusive interview to see Mikey North reveal his character's troubled soul.
Plus, you can still watch the online drama Gary's Army Diaries to see Gary and Quinny's story.
If you've been affected by any of the issues in this storyline:
Victim Support
Tel: 0845 30 30 900
Website: www.victimsupport.org.uk/
Calls from the UK are charged at local rate and mobile charges will be considerably higher.
MIND (National Association for Mental Health)
Tel: 0845 7660163
Monday-Friday 9am-5pm
Website: www.mind.org.uk