Jack's sister, Rach, just got home from the war in Afghanistan with half her head blown off by the Taliban. Her stability rapidly goes down hill, and she attempts to drown herself in the garden lake. She's sent away to a psychiatric health center. The strain of all this is too much for Jack's mum and dad, whose relationship starts to fall apart. Jack's brother, Vince, comes home to help, but he's preoccupied with his status as an international rock star-and his love of booze. Jack consoles himself by walking his malodorous dog, Tess, and hanging with his gay-goth friend, Josh, who just had the crap kicked out of him. When things can't seem to get any worse, Jack visits Rach, who begs him to help her escape. Deciding it's better for his sister on the outside, he hatches a plan with the aid of Vince, Josh, and even Tess to help his troubled sibling find something like peace. With a little assistance from James Bond, a rusty Jeep, and a dog race competition, Jack might manage to save the day.