As the COVID-19 virus spreads across the globe and forces people inside their homes for months, the world relies on online shopping more than ever. Amazon and Walmart both struggle to keep up with surging demand as their legendary infrastructures are put to the test. And workers inside both companies rise up, arguing that the retail giants are failing to protect them from the virus, prioritizing the bottom line over workers’ health. They’re both more powerful than ever, but also more vulnerable.