Alexey Pajitnov writes Tetris on a Soviet computer in Moscow in 1984, has no way to profit from it, and sets off a scramble among Western companies who all believe they hold the rights. The film follows the tangle: Robert Stein's small British firm Andromeda cutting the first deal, Robert Maxwell's son Kevin racing to license it through Mirrorsoft, and Atari Games trying to push a version through its Tengen label before anyone has sorted out who actually owns what. Into this mess walks Henk Rogers, a Dutch game designer who flies to Moscow and talks his way into the state trade organization ELORG, the body that controls every Soviet export, to nail down handheld rights for Nintendo. Interviews with the executives and negotiators involved lay out how a puzzle game built on Soviet hardware became a Cold War contract dispute, with Nintendo eventually winning the rights that made Tetris the pack-in game for the original Game Boy. The film treats the legal chaos as the real story, not an afterthought to the game's popularity.