Nineteen-year-old Liam Roche has dwarfism, so does his dad Patrick. When Patrick was Liam’s age, he was an up-and-coming drummer who went on to tour the world. Now in his late fifties and suffering from severe arthritis, Pat hasn’t drummed for ten years. Can Liam surprise his dad by getting his old band together without him knowing and give Pat ‘One Last Gig’?