A young scientist from 2D space must solve mathematical mysteries to save a doomed space mission and discover the true shape of her universe. In a world of only two dimensions, length and width, the geometrical inhabitants of Flatland dismiss the idea of the third dimension. But when a scientist (Danny Pudi) discovers a mathematical anomaly, he turns to the only person who might listen - Hex (Kristen Bell), an outcast mathematician shunned for her ideas of the third dimension. An unexpected reunion with Spherius (Michael York), a 3D being, plunges the two Flatlanders into a journey across dimensions as they race to discover the true shape of their universe.

这是一部30分钟的动画教育电影，改编自Edwin Abbott Abbott 的《Flatland》。讲述了方块爷爷向六边形孙女解释维度概念，孙女为探寻更高维度而违反禁令，最终两人成功进入更高维度化险为夷并将高维度的存在告知众人的故事。