Sierra, a primitive woman, time travels between her tribe and the modern world. Husband Clay disabled, children starve, chief Brock oppresses. In modern world, Sierra livestreams for money with Jake. Vlogger Tiger tries to expose her. Sierra saves for Clay's prosthetic, meets Professor Shaw. Professor Shaw finds rare plant in Sierra's video, deals for seeds. Sierra takes seeds, cultivates land, ends famine, rewrites tribe's destiny.