Mae'n 1985 ac mae Eran, sydd ag obsesiwn â gêm fideo, wedi blino ar ofalu am ei chwaer fach, yn sleifio allan o'r tŷ ac yn reidio ei feic i'r rhan anghywir o'r dref, i gyd dim ond i chwarae ar gabinet arcêd dirgel. Ond wrth fewnosod darn arian, mae rhywbeth yn mynd o’i le ac mae byd Eran yn cael ei newid am byth wrth i’w gorff gael ei rannu’n filiynau o atomau bach a’i aildrefnu, ei aildrefnu a’i ailgodio i Un-Gameland! Degawdau yn ddiweddarach... Mae Elaine wedi bod yn chwarae gemau ar hyd ei bywyd, dyma'r un peth sy'n ei chysylltu â'i brawd annwyl a aeth ar goll mor bell yn ôl. Mae ei hobsesiwn yn ei harwain yn y pen draw at hen gabinet arcêd yng nghladdgell casglwr. Mae hi, fel ei brawd, yn mewnosod darn arian ac yn cael ei catapulted i Un-Gameland. Ond a all y brodyr a chwiorydd ddianc?
It's 1985 and video game-obsessed Eran, tired of looking after his kid sister, sneaks out of the house and rides his bike to the wrong part of town, all just to play on a mysterious arcade cabinet. But on inserting a coin, something goes awry and Eran’s world is changed forever as his body is split into millions of tiny atoms and reordered, rearranged, and re-coded into Un-Gameland! Decades later… Elaine has been gaming her whole life, it's the one thing that connects her to her beloved brother who went missing so long ago. Her obsession eventually leads her to an old arcade cabinet in a collector's vault. She, like her brother, inserts a coin and is catapulted into Un-Gameland. But can the siblings escape?
