Watch 1 on 1 for Free: How to Stream the Movie Online at 123Movies. . Mačak is the best basketball player around the blocks of New Belgrade. Meanwhile, his friend is bullied by a local gangster Koma, whom he owns money. To pay off his debt, Mačak will play 1 on 1 with the rival player, eventually winning it. However, Koma doesn't stand on his promise, so Mačak decides to solve this problem the other way.