US labor history is full of moments of tremendous drama and upheaval. That history is riveting stuff, but getting a raw, unfiltered view of the human drama of workers fighting their bosses on the shop floor, the place where the day-to-day confrontation between workers and bosses takes place (and occasionally boils over), is rare.

Which is what makes Antoine Dangerfield’s recent viral video a must-watch. A thirty-year-old welder in Indianapolis, Dangerfield worked for a construction contractor building a UPS hub. On Tuesday, he says that a small number of Latino workers (millwrights, welders, and conveyor installers, in his telling) working for a different contractor but in the same hub were ordered home after disobeying the orders of a white boss he calls racist.

In response, the entire group of workers — over a hundred, in Dangerfield’s estimation — walked out.