Gettin' Square is about starting over, keeping clean and going straight. Barry Wirth is fresh out of prison and determined to stay on the straight and narrow. But like his mate Johnny 'Spit' Spiteri and reformed gangster turned restaurateur Dabba, he finds out the hard way that there are old scores and a few new ones that'll make getting square a lot harder than he thought.

When a group of Indigenous activists attempt to repatriate ancestral artifacts found in a cave on Australia's Kangaroo Island, one of them is shot, evading police and taken to a local hospital, where the doctor attending to her experiences strange visions relating to violent events from the past.

Sister Honour Langtree (Wendy Hughes), is in charge of a military hospital for psychiatric patients. She however transgresses boundaries by developing a sexual attraction for a new patient.