Jeb Berrier starts with one plastic grocery bag and a simple question: what happens after he throws it away? That question pulls him into a plastic footprint audit of his own life, then out into the wider supply chain, from oil rigs and refineries to the Great Pacific Garbage Patch, where researchers show him water thick with fragmented plastic outnumbering plankton. He tours a landfill, talks with marine biologists studying plastic in fish and seabirds, and sits with doctors researching bisphenol-A and its links to hormone disruption, including in his own pregnant wife. The film also follows city council fights over bag bans and bottled-water bans, showing how ordinances get written, opposed, and sometimes passed. Berrier tries the alternatives himself: canvas bags, glass containers, a month without buying anything in plastic packaging, and finds it nearly impossible. The tone stays personal and often funny rather than lecturing, but the numbers he keeps running into are blunt, plastic production climbing every year with almost none of it ever truly disappearing.